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Форум (только русский) / Скрипты и программы / Premium Proxy Switcher для Firefox
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on: May 24, 2010, 06:53:02 PM
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Портативный Premium Proxy Switcher для Opera, Internet Explorer, Firefox, Safari, Google Chrome доступен для скачивания тут - PremiumProxySwitcher.com! Программа переведена на 6 языков: РУССКИЙ, ENGLISH, FRANÇAIS, DEUTSCH, ESPAÑOL, УКРАЇНСЬКА    Premium Proxy Switcher ТОЛЬКО для Firefox (домашняя страница)Краткое описаниеГлавная цель создания Premium Proxy Switcher (PPS) заключалась в том, что бы до максимума упростить процесс использования прокси серверов. Мы объединили наш прошлый опыт (более 6 лет) и создали программный продукт который содержит в себе все те возможности, которые необходимы как начинающему так и продвинутому пользователю. В отличие от других, схожих продуктов, Premium Proxy Switcher выгодно отличается простотой интерфейса. Вы можете начать его использовать сразу после установки, нет необходимости читать документацию или иметь глубокие познания в сети. Все операции производятся на интуитивном уровне, с помощью всего одного нажатия мыши. В тоже время, такой удобный продукт как Premium Proxy Switcher абсолютно бесплатный для всех. Вам не нужно быть нашим VIP подписчиком что бы насладится всеми его возможностями. Вы свободно можете использовать PPS с любым другим прокси сервисом, который позволяет его пользователям скачивать прокси сервера с определенного URL-а. Думаю не стоит больше терять времени! PPS очень легко установить, для этого достаточно нажать здесь и разрешить Firefox установить дополнение. По запросу Firefox-а перезагрузите его и насладитесь новым уровнем комфорта использования прокси серверов. Главные возможности* Автоматически скачивать прокси лист каждые 1-30 минут с нашей VIP зоны или указанного пользователем URL-а. * Автоматически менять прокси сервера каждые 1-30 минут, это в свою очередь повышает ваш уровень анонимности, так как все зпросы идут через разные прокси сервера. * Установить любой прокси сервер из доступного прокси списка всего одним нажатием мыши. * В ручную сменить прокси сервер на случайных из доступного прокси листа. * Удалите выбранные прокси сервер из листа если он не работает и установить случайный из доступного списка. * Включить или выключить использование прокси сервера в Firefox всего одним нажатием мыши. * Обновить (скачать) прокси лист вручную с нашей VIP зоны или с определенного пользователем URL-а. * Отображать страну прокси сервера в списке доступных прокси серверов, таким образом пользователь сможет легко выбирать необходимый ему на данный момент прокси сервер. * Добавить горячие клавиши на все доступные операции, для тех пользователей кто предпочитает использовать клавиатуру. * Возможность управлять прокси листом в ручную с клавиатуры. Будущие возможности* Проверить прокси сервер на работоспособность перед тем как установить его в Firefox. Мертвые прокси сервера автоматически будут удалены из листа. Это позволит пользователю сэкономить много времени ища подходящий прокси для его конкретной страны или региона. * Скачивать 5 бесплатных (быстрых и стабильных) прокси сервера из VIP зоны раз в день. Скачать Premium Proxy SwitcherЗдесь вы всегда можете найти новую версию Premium Proxy Switcher-а (если вам нужная старая версия пожалуйста посмотрите на домашней страничке): Premium Proxy SwitcherНажмите здесь что бы получить VIP код для Premium Proxy Switcher  
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Forum (only english) / Scripts and programs / Premium Proxy Switcher for Firefox
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on: May 23, 2010, 07:05:20 PM
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Stand alone (portable) Premium Proxy Switcher for Internet Explorer, Opera, Firefox, Safari, Google Chrome can be downloaded here PremiumProxySwitcher.com! Available in 6 languages: ENGLISH, РУССКИЙ, FRANÇAIS, DEUTSCH, ESPAÑOL, УКРАЇНСЬКА Premium Proxy Switcher ONLY for Firefox (HOME PAGE)Short descriptionThe main reason for developing Premium Proxy Switcher was making proxy usage process more user friendly. We collected all our past experience (over 6 years) and created easy to use software which contains all features for beginner and advanced users at the same time. Unlike other proxy addons for Firefox we did not make complicated interface. Right after installation you could start using it, no documentation or special knowledge is required. All operations are done on intuitive base and with just single click. At the same time such powerful tool like Premium Proxy Switcher is absolutely FREE for anyone. You do not need to have our VIP password to enjoy all its features. You can simply use it with any other proxy servers’ provider who allows users to fetch proxy servers from URL. So, why you are still wasting your time? It is quick to do and sounds fantastic, simply click here and allow Firefox to install it. On request restart your browser and enjoy the new level of proxy usage. Main features* Automatically loads proxy servers every 1-30 minutes from our VIP zone or from user specified URL. * Automatically changes proxy server every 1-30 minutes, that in turn increases your privacy level since your requests will be sent though different proxy servers. * Select any proxy server from available proxy list with just a single click. * Manually switch proxy server to random one from the available proxy list with single click * Delete selected proxy server from the list if it is not working any more and switch to random proxy server from available proxy list. * Enable or Disable proxy server usage in Firefox with single click. * Manually load proxy servers from our VIP section or user defined URL. * Display proxy country in available proxy list menu, so user could easily select necessary one for that particular moment. * Add shortcuts to all commands for those users who prefer to do everything fast (with keyboard). * The possibility to manage proxy list manually with help of keyboard. Future features* Check proxy server before it will be used by Firefox. The dead ones will be automatically removed from the list. That will allow user save lots of time searching good one for his particular country or region. * Daily download 5 FREE sample (fast and stable) proxy servers from VIP zone. Download Premium Proxy SwitcherHere you can always find latest versions of Premium Proxy Switcher (if you need older version please check home page): Premium Proxy SwitcherClick here to get VIP code for Premium Proxy Switcher  
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Forum (only english) / General discussions / Re: Tor versus Public Proxy Servers
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on: May 22, 2010, 02:04:15 PM
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When using emails service like Gmail, users have the possibility to see the last 9 IP automatically recorded + the one currently used; that way you can see if your email is illegally used/visited. I did a little experiment, one using an account used without proxies, which was never visited by alien identities, one account which was reached through public proxies and one account which was reached through Tor, but, alas, must confess that the two accounts reached via public proxies & Tor where visited (several times in a period of a few months). Of course, nothing to worry, but that is something people should be aware of.Most strange fact in your story is that someone possibly hack your email because you have used public proxy servers. I cannot say anything about Tor but it is ABSOLUTELY impossible to do with public proxy server. Nobody, even the owner of proxy server could steal your email’s or even bank account’s password if you used his proxy. I will try to avoid theory and explain it as simple as possible:
All services like email, online banking or check out (when you make a payment via credit card) are done via HTTP protocol over SSL. To say it more user friendly that is https:// like URLs. If you can see that extra S symbol after http that means: connection between you and the server (web site) is secure.
Secure, means absolutely secure! Nobody between your PC and server (web site) could read information you are sending or receiving. They could identify to which web site you opened a secure connection BUT after this point all information is encoded with special, so called public keys.
What does it means? It means that information encoded by sender (your PC if you are sending password for example) could be decoded only by server (web site where you are trying to login). Nobody in the middle could decode it!
You could think that key which is used to decode data, could be generated BUT please take in an account that the size of the key is 1024 bit that means if you will use even 10.000 computers connected with each other. It will takes much more than 1000 years none stop working to check all possible variations 
That is why: if you are opening https:// like URLs via public proxy servers (which could be under monitor) still, nobody could see your personal information (including passwords) .
Thank you once again for sharing information you got. You did a great job by asking so much interesting and frequently asked question in one topic.
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 12:42:01 PM
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11-So, finally, what would you advise? Tor, free anonymous public proxies, paid proxies, else? Heard of JAP for instance, but seems to have a backdoor…Unfortunately you are 90% wrong with public proxy servers You need to read a bit more theory and articles (they are publicly available). If you are IT qualified and you know the basics you should know that there are no better way to make yourself private than to use public proxy server.[/b] As Shakespeare would say: Tor be or not Tor be, that is the question. ;-)Of course TO BE my friend! That is why we have created that forum and our web site. We are all here to help users keep their privacy rights. IMHO no one in this world have right to read other person’s emails or monitor their activity, each person has his own PERSONAL life.
If anyone will need a help please never hesitate to contact me. I am always ready to help each and very online surfer!
Good bless you.
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 12:32:27 PM
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10-All of us have heard about those stories of hackers penetrating the computers of famous agencies or companies, then publishing their findings. But they were also some of those guys who got busted. Here too it raises some questions. One can suppose that smart guys like hackers never surf 'naked', without protection, but always via proxies while attacking computers, it must be a rule, a sticky. Then, how is it that some were yet tracked and busted? Or proxies protect you or they don’t, right? There is no middle way. Could it be possible that the authorities do have tools to trace back anyone when they decide to, when you become for them a top priority target they could always find you, wherever you are and whatever you use to surf safe? But if so, then using proxies or not does not make any difference in terms of protection, just delaying the time for the authorities to find you. Myth or reality?That was really nice attempt to prove that anonymous proxy servers are worse  but you made a mistake once again. First of all I could show you a forum with hundred of users who did even SPAM from their own PC without a proxy  I call them kamikaze... So there is a high chance that you heard exactly about such, so called hacker That kamikazes are sure that nobody will find them and they are partly right. Let me explain why:
Very often I see users who ask me a question if public proxy servers are 100% anonymous. The answer is yes of course, they are 100% anonymous BUT there is a rule which ‘TOP’ guys are using to select which hacker they are going to punish. The rule is simple, if time and money spent on finding a hacker is less than a profit from finding him they will 100% find such hacker, no matter if he will use proxy chains or any other hard to analyze methods.
There is another situation when they could start searching: if one abuses someone too much and he is ready to cover all expenses just to punish hacker then again nobody will help him The punisher will keep searching hacker for ages until he will not die or forget about you. It is similar to the bear: if you shoot bear but it is still alive he will continue running after you until death
So you should not worry about everything described above, since you are not going to steal 1.000.000 USD from bank or hack NASA’s web site Nobody will start searching you just because you check facebook or youtube in school where such sites are blocked by admin or for watching porn sites instead of doing your job
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 12:03:43 PM
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9-There has been some kind of hysteria about the use or not of JavaScript in the browser. As far as I understand, Java could reveal your real IP if turned on. But this would not be the case for JavaScript. And since contradictory claims are found all over, it is hard to have an opinion. I noticed, for instance, that the default settings of Tor (+Privoxy, etc.) do have JavaScript on, so one presumes those people are not idiots and provide a default setting that would jeopardize all what Tor is aimed at : providing anonymous surfing and hiding real IP. Please bring us your light of expert.I have never seen any web site that is doing such difficult manipulations to identify your IP. Even more the user’s IP via JS could NOT be identified, they use similar to pronounce Java Applets. So please do not frighten users if you do not know the difference between them
Java Applets are separated programs, which could be run inside your browser (your mobile games are mostly java applets). They never use browser’s proxy settings. BUT browser will ALWAYS ask user to allow or disable such Java Applets if they exist on the page. So it is up to the user show or not to show his real IP
This question looks more like a myth which was created by several groups of people to make users buy their product or software Anonymous public proxy server is more than enough to hide your IP. BUT if you are going to hack bank account and steal 1.000.000 USD, you will be 100% found even if you will use super-mega-proxy server
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 11:53:12 AM
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8-What is your opinion about the hidden services of Tor? That allows for instance people to run a board or to share files from their computer, without, apparently, the possibility of being located/identified? Do you see any weakness, real or potential, in that system? Really interesting question let me answer it. Do you know that the best way to hack user’a PC and install BotNets (please read about them above) is a torrent or similar hidden file shearing? Hacker downloads new game, adds virus and shares it via torrent... thousands users will download and install it on their PC.
Their antivirus will never fine a BotNet! In best situation if user is IT qualified, he could block outgoing traffic for BotNet but there is just few % of users who could do that. In most cases such user’s PC will be used as illegal proxy for sending spam.
That is why I strongly recommend use only trusted web sites. There is a good file hosting rapidshare, you could find almost anything uploaded their
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 11:21:43 AM
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7-And what about those paid proxies? Are they safer? Probably not a wise idea to always use the same proxy as proposed by those paid ones. Besides you can be traced/identified through your payment. And these guys know all your surfing habits, may (and probably do) keep your logs, etc. In a word, they know too much about you.It is absolutely safe to use our public proxy servers. Do you know why? Just check our real time stats for last 24 hours and you will see that we have almost 20.000 different proxy servers during 24 hours.
Just couple of days ago we finished our brand new product Premium Proxy Switcher (PPS) for Firefox. It will be available on our web site within couple of days. It is absolutely free to anyone and could be used not only with our VIP service but with any other proxy provider. Now even beginner user, without any knowledge in IT field could use advantage of proxy servers. PPS downloads proxy list and changes proxy setting in Firefox automatically based on user preferences.
If it is impossible to find user activity in one public proxy server’s log file then it is ABSOLUTELY impossible to monitor their activity if they used Premium Proxy Switcher. Since their logs are split among different proxy servers.
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 11:12:26 AM
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5-This also raises the question about the real identity of those who do run public proxies. Do we have the capacity to truly know them? A simple 'whois' research always, or most of the time, do return information, but how far this information can be trusted? Anyone knows that even those opening name sites can register under false identities, how much more for proxies? Quite strange (or totally expected indeed), that we will never find any proxies registered to very nice agencies like the F/B/I, N/S/A, C/I/A, etc. They do not run proxies of course; they are far too respectful of citizens’ privacy, lol.
6-Likely, it is advised to select proxies not from your own country, but, again, a pro-Democratic Chinese activist may think he is safe while deciding to use a Japanese proxy, but that proxy, while really based in Japan could be run by China through its agents…I am sure if you read everything above you already know who is in charge of public proxy servers. Also you know why you can select any country, including China without any worries. Even more, for me Tor project looks more suspicious and dangerous than any public proxy servers!
I remember similar project CoDeeN which claims to be free and independent organization but I am 100% sure they are collecting information about each and every users who uses their service. They do not hack you email or steal you money from your CC. They simple collect US people preferences in music, movies, goods and so on... to sells all those stats to some manufacturer.
In 21th century information is much more expansive than gold or even oil
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 11:05:43 AM
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4-If one easily understands why some citizens does need anonymity for surfing, the question of those who run those public proxies is less clear. The advantages for the citizens are obvious, but what about for those who do run proxies? Starting with the fundamental question : why do they run them? For money? But they are free, so…? To increase internet traffic? There are certainly far better ways to increase internet traffic than providing services that will make your connection run as fast as a snail…. (most of the time). For the love of freedom? Yeah, sure, lol. Honestly, what good reasons have those people to be so generous?
More seriously, should not we consider any proxy as suspicious in nature? Who use proxies? Basically guys that need to hide their activities (spammers, hackers, spying agencies, military, mafia, political activists, etc.), proxies behaves like a magnet, and will attract all those guys. So, it costs really peanuts to run those proxies compared with all the potentially interesting information that could be (or can be?) harvested, provided it can be collected (hence the above question). Unfortunately I could not fully answer your question. Our forum is publicly available and anyone could read it. But since too many users ask me the similar question: why someone runs proxy server for free? I have decided to give you a tip
Do you know that when anyone setup squid proxy servers (it is most wide spread proxy server on the earth) it is does not have any restrictions? It looks strange but by default anyone who knows IP and port could use it. If you want to add authentication (access proxy only via user name and password) you have to have good knowledge in *nux based OS + some experience in networking.
So most beginner administrators left defaults settings or change just a port, from default 3128 to 80 or 8080 which are standards for proxy servers. If you know that proxy is open (does not require user or pass), you know possible port what else do you need to find it? Just a software and couple of hours I am sure you came across with situation when one day proxy was public but next day it asks you user name and password so know you know why
p.s. Please never do port scan! They are also prohibited by the law there are other ways to find proxy server without doing anything illegal. Of course I am not going to share such valuable information; otherwise anyone will be able to create a web site similar to freeproxylist.org
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 10:50:27 AM
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3-In those lists of free public proxies, it seems always provided by companies, corporations, etc., but are ordinary citizens able or allowed to run their computer as a proxy server? Such an option exists for Tor, where any citizen can transform his computer into an anonymous proxy server; but what about out of this context? Does the person have to register somewhere in order to run his computer as a proxy? To his ISP?I guess no need to answer that question; everything is said within second answer I will repeat once again: if you are connected to the internet, you have your own IP address. And you are responsible for all operations which will be done via that IP. If you have proxy server on your PC that means that all other users activity (operations) is done like you are doing them by you own. So no way to say ‘I have not done that’ later
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 10:43:53 AM
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2-If no, then why is it not technically possible? But if yes, would do they need special skills (hacking) in order to achieve this, or does it requires just no special tools, settings or skills?Of course it is possible; even more many users have no idea that their PC is already used as a proxy server. This type of proxy servers is so called BotNets. I guess it is useless to say that they are prohibited by the low. You could have big problems if you will simply use them for browsing. Mainly they are created by spammers for sending millions of emails every day.
So that is why I strongly recommend that a person who is not qualified in IT will setup anything similar to proxy server on his PC. Just imagine: if he will not block CONNECT commands to some particular ports, which means that anyone could use his PC for tunneling data to any protocol!!! That in turn means his PC could be used to make a brute force or DoS attack to any bank service. Very soon his IP will be identified and I guess you know who will be his guests at the evening time
For example: in case if everything was done via BotNet proxy, user have right to say that everything was done against his will and he has no idea about it. BUT with TOR project for example HE DID EVERYTHING BY HIS OWN and their for HE IS IN CHARGE OF ALL ACTIVITY FROM HIS PC
If you are looking for extra problems feel free to setup proxy server or similar software on your PC, very soon (I guess within couple of days) you will have them
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Forum (only english) / General discussions / Re: *** Tor versus Public Proxies ***
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on: May 22, 2010, 10:38:24 AM
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First of all thank you very much for your interesting questions. Let me answer and I am sure all your doubts about public proxy servers will disappear. I have over 6 years experience working especially with proxy servers and I know almost everything about them... even more our team developed brand new proxy servers zProxy2, which work similar to Squid but has much more advantage function. Very soon it will be available for our public users 1-Can not we consider that each of those proxies has, potentially, the same weaknesses as Tor exit nodes? That is to say, those who do run them could have the capacity of monitoring and recording all the activities that occur on their servers (like getting login data of emails, boards, etc.)?Ok, you are theoretically right. Anyone, who is the owner of proxy server, could monitor user activity based on logs. That is why I always warning all users that they should not use any dedicated IP or Tor like projects (sorry, nothing personal). Here is the simple explanation why:
How many users will use dedicated proxy server or Tor project in compare to public proxy servers? You are absolutely right, public proxy server is used by thousand and thousand new users from the entire world per day. That is the main advantage of public proxy server
It is almost impossible to find your activity (requests) among gigabytes of others traffic... there is no server who can keep so much user activity and monitor them, the logs are very soon deleted or overflowed. So after max 24 hours nobody will be able, even theoretically to find your activity It is absolutely the same to search a needle in haystack |
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Forum (only english) / FreeProxyList.org web site / Re: The connection has timed out
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on: March 09, 2010, 08:00:53 PM
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First of all thank you very much for choosing our service. As for your question regarding the problem with proxy servers, there are could be several reasons for that. Please make sure that you are doing setup right way. If you are absolutely sure then you have to check what you have specified for 'time interval' field. That is innovation available only at our web site BUT in many cases it cause such problem. Different projects require different values: - If you are going to use proxy server manually then the best will be 10-20 minutes.
- If you will use proxy server for programs or scripts then you have to select 3-5 minutes.
- Finally if you are going to test proxy servers before usage you can simple select the maximum - 360 minutes to get maximum amount of proxy servers.
Also you can set minimum speed to 10kb, minimum uptime to 80% and finally 10 minutes as time interval. If you will still experience a problem could you please supply us with region (if you prefer to keep your country private) and last part of your download link (for security reasons do not post your KEY here), right after '&data=' string. BTW if you are using Firefox then I will suggest xyzproxy Add-on. With single click can enable, disable or select any proxy from the list. The only disadvantage it has right now is that, it does not allow users to load proxy servers from given URL (currently we are working on our own proxy Add-on for Firefox). https://addons.mozilla.org/en-US/firefox/addon/1273Waiting for your replay Administrator |
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Форум (только русский) / Общие вопросы / Что такое порт и зачем он был создан? Что такое прокси порт?
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on: February 25, 2010, 10:26:05 PM
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Каждый прокси сервер состоит из двух частей разделенных символом двоеточия - 163.29.225.250:8080. Первая часть - 163.29.225.250 это ИП адрес компьютера (сервера) где непосредственно находится прокси сервер, когда как последние 4 цифры это так называемый порт. Если вы читаете данную статью это значит вас интересует что же на самом деле из себя представляет порт, для чего он? Персональный компьютер (ПК) который подключен к интернету или локальной (вычислительной) сети (ЛВС) имеет свой уникальный ИП адрес. Не вникая в детали - этот ИП адрес используется различными программами запушенными на данном ПК для "обнаружения" другого ПК, который в свою очередь тоже подключенного к интернету или ЛВС. Думаю легче всего понять принцип работы порта будет на реальном примере. Для начала, представьте ПК в виде большого здания с 10 квартирами внутри (в каждой из них живет отдельная семья). В таком случае, вы свободно можете представить каждую такую квартиру как одну программу запушенную на вашем ПК. И наконец - ИП в данном случае будет физическим адресом этого здания. (чем будет порт я объясню чуть позже...) Дальше - представим ситуацию, кто-то отправил посылку на этот адрес НО забыл указать номер квартиры. Наверно вы уже догадались с какой проблемой столкнется посыльный когда ему дадут задания доставить посылку адресату. Посылка благополучно доберется до здания но как определить получателя? В одном доме (один ИП адрес) 10 разных семей живущих в 10 разных квартирах и соответственно любая может быть получателем. Что бы избежать такие ситуации, мы должны указывать не только адрес здания но также и номер квартиры. Также как и в примере приведенном выше, все сетевые посылки (данные) в интернете должны быть отправлены с указанием не только ИП адреса (адрес здания) но и порта (номер квартиры). На одном ПК (большое здание) может быть запушена дюжина разных программ (квартиры) но каждая из них ДОЛЖА иметь свой собственный порт (номер квартиры) что бы имела возможность получать посылки. Порт может принимать значения от 0 до 65535. НО пожалуйста учтите, все порты от 0 до 1024 зарезервированы для известных протоколов. Например: порт 80 был зарезервирован для HTTP протокола (открытия сайтов), 110 для POP3 (получение электронной почты), 25 для SMTP (отправки электронных писем), 21 для FTP (закачивание файлов на сервер) и т.д. Все остальные порты динамически используются другими программами для каждого отдельного соединения. Заключение: каждая программа которая хочет получать запросы от другого компьютера через сеть ДОЛЖНА выбрать один порт. Также заметьте что одновременно только ОДНА программа может использовать ОДИН определенный порт для получения посылок. В противном случае, вашей операционной системе (посыльный) будет невозможно определить получателя этой сетевой посылки. Другими словами, это и является зачастую причиной ошибки вашей операционной системы "порт уже используется другой программой" и просьбой перезагрузить ПК. Продолжайте посещать наш сайт что бы читать интересные статьи Если у вас возникли вопросы касательно данного материала или просто есть вопрос, пожалуйста пишите в этой ветке, мы всегда рады ответить вам. |
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Forum (only english) / General discussions / What is port and what it was designed for? What is proxy port number?
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on: February 22, 2010, 04:52:41 PM
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All proxy servers contain two parts divided with column - 163.29.225.250:8080. The first part - 163.29.225.250 is the IP address of the computer (server) where proxy server is located while the last 4 digits are so called port. If you are reading this article than it means that you are interesting what port is in general and what it was designed for? Personal computer (PC) which is connected to the Internet or local area network (LAN) has its own unique IP address. Basically that IP address is used by different programs running on PC to find another computer which is also connected to the Internet or LAN. The simplest way to understand how port works and it is purpose of usage is to make parallel with real world. First - lets imagine that PC is like a big building with 10 flats inside (for different families). Each flat in that building is like a separate program running on your PC. Finally the IP address will be building's physical address. (what will be a port, I will explain a bit later...) Second - let's imagine the situation when someone sends parcel to our address BUT forgets to write a flat number. As you already guess the parcel could be delivered to the building but after that post officer will have a problem to identify the receiver. There are 10 different families living in 10 different flats in that building (on one IP) and anyone could be an owner. To prevent such situation we have to specify not only building's address but also a flat number. Similar to the example described above in the Internet all network parcels (data) should be sent with IP address (building's address) and port number (flat number). There could be dozen of different programs (flats) running on one PC (big building) but each of them MUST have their own port (flat number) to receive network parcels. Port number could get values from 0 up to 65535. BUT please take in account that all ports from 0 till 1024 are reserved for some well known services. For example: port 80 is defined as a default for HTTP protocol (to open websites), 110 for POP3 (to receive emails), 25 for SMTP (to send emails), 21 for FTP (to upload files on the server) and so on. The rest are used dynamically by other programs for each connection. As a conclusion: every program which wants to receive requests from other computers MUST select one port. Please take into account that only ONE program at a time could use ONE particular port for receiving network parcels. Otherwise it would be impossible for operating system (post officer) to identify the receiver, of network parcel. In other words, it is exactly why your system generates error message "this prot is already in use" and required reboot. Keep visiting our forum to read interesting articles Needless to say, if you have question related to this article or you are interested in something else, you are more then welcome to post your questions here |
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Форум (только русский) / Общие вопросы / Что такое анонимный прокси? Типы прокси: прозрачный, анонимный или элитный.
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on: February 10, 2010, 01:02:36 PM
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Я предполагаю что вы уже знаете что такое прокси сервер (в противном случае предлагаю ознакомится с статьей Как покупать на сайте Amazone или как работает прокси сервер). Вы уже не раз слышали: прозрачный (transparent), анонимный (anonymous) или элитный (elite) прокси сервер, но какая разница между ними? Во первых, надо обратить внимание на тот факт, что все прокси не смотря на то к какому типу они относятся, работают по одному и тому же принципу (они представляют из себя промежуточный пункт между вами и ресурсом который вы запрашиваете). Что такое прозрачный (transparent) прокси сервер?Прозрачный прокси сервер меняет ваш IP адрес на свой, НО ваш реальный IP все равно присутствует в вашем запросе (представьте что он просто перенесен в другое место). Таким образом если веб сайт (который вы запрашиваете) решит определить ваш реальный IP, то он без затруднений сделает это. Вы можете предположить что прозрачные прокси сервера бесполезны, так как они не обеспечивают приватность (скрытие вашего IP), но не спешите с выводами. У прозрачных прокси есть другое преимущество: они работают быстрей (скорость) чем аналогичные анонимные или элитные прокси. У таких прокси есть свое предназначение, например - если вы хотите обойти локальный фаервол который блокирует доступ к некоему сайту, прозрачные прокси сервера самое идеальное решение. Ведь в вашу задачу не входит скрытие реального IP, а только какой сайт вы посещаете. Также (правда очень редко), прозрачные прокси сервера подходят для накрутки счетчиков на вашей страничке (я уверен что в отличие от непорядочных веб мастеров, вы не будете использовать такой способ накрутки ) ИНТЕРЕСНО: если вы не используете прокси или используете но прозрачный, ваш ПК транслирует всем ваш уникальный IP адрес. Каждый раз когда вы открываете веб страничку, сервер на котором находится данная страница, имеет полную информацию о вашей операционной системе (ОС). Это значит что владелец веб сайта может с легкостью определить самые уязвимые места вашей ОС. Пользователь не должен быть профессиональным хакером с специальным образованием что бы используя эти уязвимости он смог взломать ваш ПК. Есть дюжина готовых, легких в использовании и (внимание) БЕСПЛАТНЫХ программ которые любой ребенок сможет использовать (пожалуйста не просите меня указать где можно скачать подобный софт, как взломать форум или почтовый ящик, я все равно вас не научу ). С помощью таких программ, любой желающий может получить доступ к вашим документам, письмам, личным фотографиям или фильмам которые вы храните на своем ПК - думая что они надежно скрыты от посторонних глаз Что бы предотвратить подобные хакерские атаки, вам необходимо скрыть ваш реальный IP адрес, и тем самым скрыть адрес вашего ПК в интернет сети. Что такое анонимный (anonymous) прокси сервер?Анонимный прокси сервер не передает информации о вашем реальном IP адресе. Это значит что вы как привидение в интернете, никому не известно о вашем реальном место положении и по этой простой причине, просто невозможно установить скрытое соединение с вашим ПК, для похищение информации. Единственным ВОЗМОЖНЫМ недостатком анонимного прокси сервера можно посчитать тот факт, что веб сайт который вы запрашиваете, может определить что вы используете прокси для соединения (это в свою очередь может означать что вы скрываете ваш реальный IP адрес). Но с другой стороны, если пользователь использует прокси сервер, это не всегда значит что он пытается скрыть свой реальный IP адрес. Допустим когда вы используете мобильный WAP интернет, в таком случае все пользователи обязаны использовать один прокси сервер, который предоставляет мобильный оператор (главным образом для мониторинга). Как минимум по этой причине, тот факт что вы используете прокси сервер для соединения, иногда может быть расценен как нормальное поведение, а анонимные прокси сервера надежно скроют ваш реальный IP адрес. Что такое элитный (elite) прокси сервер?Элитные прокси самые "скрытные", они имеют все преимущества анонимных прокси серверов с точки зрения скрытия вашего реального IP, но плюс ко всему они ПЫТАЮТСЯ скрыть сам факт использования прокси сервера при запросе. Другими словами, они ведут себя таким образом, что создают впечатлени, что вы вовсе не использовали прокси для запроса и IP адрес который вы передаете серверу, ваш реальный адрес. Главное что вы должны знать о элитных прокси серверах это то что из за их возможности скрывать факт использования прокси, они очень популярны, а это в свою очередь приводит к тому что их очень часто перегружают и в результате они работают медленней. Вы всегда можете проверить насколько надежно скрыть ваш IP адрес от веб сайта, посетив следующий линк: Покажи мой ИППодведем итог, в двух словах опишем преимущества и сферу применения каждого типа прокси сервера: Прозрачный прокси сервер: Анонимный прокси сервер: - Преимущество: средняя скорость, средняя скрытность
- Возможный недостаток: виден факт использования прокси
- Общее применение: подходит для 99% задач
Элитный прокси сервер: - Преимущества: высокий уровень скрытности, скрыт факт использования прокси
- Недостатки: низкая скорость
- Конкретное применение: очень редкий случай, когда необходимо скрыть сам факт использования прокси сервера
ВНИМАНИЕ: весь материал представленный в данной статье предназначен только в образовательных целях Продолжайте посещать наш сайт что бы читать интересные статьи Если у вас возникли вопросы касательно данного материала или просто есть вопрос, пожалуйста пишите в этой ветке, мы всегда рады ответить вам. |
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