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Topic: Open proxy


  
 Open proxy - Wikipedia, the free encyclopedia
Because proxies are implicated in abuse, system administrators have developed a number of ways to refuse service to open proxies.
Because of the historically lax security on poorly managed, unpatched or poorly configured machines running various operating systems, it is possible for a user's machine to be running such servers without their knowledge by means of computer viruses designed for this purpose.
An open proxy is a proxy server which is accessible by any Internet user.
http://en.wikipedia.org/wiki/Open_proxy   (305 words)

  
 Proxy server - Wikipedia, the free encyclopedia
Spammers frequently install open proxies on unwitting end users' Microsoft Windows computers by means of computer viruses designed for this purpose.
A proxy server is a computer that offers a computer network service to allow clients to make indirect network connections to other network services.
Because proxies could be implicated in abuse, system administrators have developed a number of ways to refuse service to open proxies.
http://en.wikipedia.org/wiki/Proxy_server   (1692 words)

  
 Insecure Proxy Scanning Information Center
An "open" or insecure proxy server will accept any requests from any computer (whether on the local area network it's supposed to be sharing the internet connection for or any computer on the internet) to share the internet connection.
A proxy server is a software program that enables multiple computers to share a single internet connection.
The methods of configuring your proxy obviously vary based on the proxy software that you are using.
http://www.technerd.net/proxy.html   (662 words)

  
 Open Proxy Servers
When you use an open proxy server, your computer is making a direct connection to another computer.
A hacker can put a proxy server up on his, or a victim's computer and wait for a scanner to find it.
Companies and ISPs often use caching in proxy servers to reduce the load on their networks.
http://www.postcastserver.com/help/Open_Proxy_Servers.aspx   (430 words)

  
 Information About Open Proxy Servers
All a hacker needs to do is to put a proxy server up on his, or a victim's computer and wait for a few hours for a scanner to find it.
When using an open proxy server, your PC is making a direct connection to another computer.
Honey pots are open computers that are just waiting for someone to find and exploit.
http://theproxyconnection.com/openproxy.html   (1811 words)

  
 Open Web Proxies on the Cornell University Network
If you find that a web proxy is configured to run as part of another software package, you will need to disable or reconfigure that software.
On Unix systems, squid is a common proxy server that is usually part of the full distribution of many Unix variants.
Also, there are a large number of viruses, trojan horse programs, and other software that open web proxy servers on systems without the knowledge of users or administrators.
http://www.cit.cornell.edu/computer/security/openweb   (1599 words)

  
 Software Archive: pxytest
This is a particularly vexing problem, because open proxies, unlike open mail relays, hide the origin of the spam, making it impossible to trace.
In this example, correctly secured web servers (or caches or proxies) were observed on ports 80, 8080, and 8081.
One bugfix, one new proxy type, and many new features added.
http://www.unicom.com/sw/pxytest   (456 words)

  
 mod_proxy - Apache HTTP Server
The proxy module will also attempt to determine IP addresses of list items which may be hostnames during startup, and cache them for match test as well.
was implemented in the Apache FTP proxy; it is a solution which is also used by other popular proxy servers like the Squid Proxy Cache.
It is mostly useful in special configurations like proxied mass name-based virtual hosting, where the original Host header needs to be evaluated by the backend server.
http://httpd.apache.org/docs/2.0/mod/mod_proxy.html   (2766 words)

  
 Define proxy server - a Whatis.com definition - see also: proxy
The functions of proxy, firewall, and caching can be in separate server programs or combined in a single package.
An advantage of a proxy server is that its cache can serve all users.
Different server programs can be in different computers.
http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci212840,00.html   (473 words)

  
 Sobig.a and the Spam You Receive Today - LURHQ
The idea is to give the virus writer control over a large quantity of infected computers, establishing a virtual army of computers to do his or her bidding.
The best we can do is to analyze the system the virus uses to install the proxy servers and undermine its ability to remain hidden on the Internet by sharing that information.
This is the sordid tale of how a lone computer virus opened the door for millions of spam emails every day worldwide.
http://www.lurhq.com/sobig.html   (1974 words)

  
 Open Proxy Servers a Source of Spam
It is this last category--spam from open proxy servers--that has become a growing concern for Darkwing, Gladstone, and Oregon users lately.
Based on these efforts, we hope to dramatically reduce spam received from open proxy servers, much as we've been able to successfully reduce other sources of spam abusing UO email addresses.
In an effort to deal with this problem, the Computing Center Systems group--the group that's ultimately responsible for administering Darkwing, Gladstone, and Oregon's anti-spam measures--has been experimenting with a DNS-based Open Proxy blacklist known as the Blitzed Open Proxy Monitor.
http://cc.uoregon.edu/cnews/fall2002/openproxy.html   (429 words)

  
 SotM 31
Please review the honeynet whitepaper entitled Open Proxy Honeypot for in depth details of the configurations.
Open Proxy servers are a big problem on the Internet.
In order to gather data on these types of attack channels, the Honeypots: Monitoring and Forensics Project deployed a specially configured Apache web server, designed specifically for use as a honeypot open proxy server or ProxyPot.
http://www.honeynet.org/scans/scan31   (415 words)

  
 Lending spammers a helping hand Tech News on ZDNet
"The proxy problem could be mostly eliminated by Internet service providers simply scanning their own networks for open proxies," said Steve Linford, president of the blocklist The Spamhaus Project.
Linford said that for the last year many software developers, who create programs for spammers to send bulk e-mail anonymously, have focused on creating "proxy spamware" for use with open proxies because of high demand.
Spam "supermarkets" such as Data-miners.net specialize in scanning the Internet on the hunt for open proxies to sell instructions for using them to junk mailers everywhere, he said.
http://news.zdnet.com/2100-9595_22-958847.html   (1288 words)

  
 Adelphia
There are many viruses and Trojans that can be used to install open proxy software on an unsuspecting user's computer.
We also recommend using anti-Trojan software to locate and remove any Trojan software that may be residing on your system(s).
If you do not locate anything with one anti-Trojan software package you may wish to try another.
http://www.adelphia.com/esafety/proxy_servers.cfm   (545 words)

  
 Fighting Spammers With Honeypots: Part 1
An open relay (which is sometimes called an insecure relay or a third-party relay) is a Mail Transfer Agent (MTA) that accepts third-party relays of e-mail messages even though they are not destined for its domain.
Some of them share their information in public lists of proxies on the Internet (just use Google and search for things like "open proxies list").
In comparison with Honeyd, it cannot simulate something else (Honeyd may be used to simulate anything you need); it cannot change its IP stack behavior, etc. Though it's a simpler tool, we'll quickly learn many things from spammers.
http://www.securityfocus.com/infocus/1747   (2831 words)

  
 Adventures of an Open Proxy Server - LURHQ
For a computer criminal, the ideal proxy will pass zero information about the real host, and will effectively make it look as though the proxy is the true attack source.
Companies and ISPs often turn to caching proxy servers to reduce the tremendous load on their networks.
Users of Internet Relay Chat (IRC) were particularly interested in these Wingate proxy servers, since attacks such as Winnuke and ping flooding were becoming popular at the same time.
http://www.lurhq.com/proxies.html   (1748 words)

  
 phpBB.com :: View topic - [2.0.18] Block Open Proxy Registrants
alternatively, it's possible that you, yourself, might have used an open proxy in the past, and didn't remove it from the configuration.
the thing is - if you're computer is set up as an open proxy, you can get in trouble for things you didn't do.
to configure internet explorer to use a proxy, you'll need to follow the instructions as given here:
http://www.phpbb.com/phpBB/viewtopic.php?t=248252   (1363 words)

  
 proxycheck: Open Proxy checker
is a simple tool that will work on a reasonable *nix system and may be used to quickly check whenever a given host or set of hosts has open proxy server running (No, I will not adapt it to run on winbloze machine, don't ever ask me about this).
But before it is possible, one need to know whenever any machine runs such service or not.
So it is possible to scan the whole networks using this tool.
http://www.corpit.ru/mjt/proxycheck.html   (834 words)

  
 Public Proxy Servers
A proxy server is a kind of buffer between your computer and the Internet resources you are accessing.
The cache of a proxy server may already contain information you need by the time of your request, making it possible for the proxy to deliver it immediately.
Anonymous proxy servers hide your IP address and thereby prevent unauthorized access to your computer through the Internet.
http://www.publicproxyservers.com   (794 words)

  
 BOPM - Blitzed
It's the database of open proxies we provide and BOPM checks against before bothering to scan the client, therefore killing known proxies faster and more efficiently.
People are also using our DNSBL to block spam (spammers use open proxies probably more than IRC abusers do) so you'd be helping the whole Internet.
Remember for all Unreal versions you must set the perform line correctly (documented in the config file).
http://wiki.blitzed.org/BOPM   (748 words)

  
 Frost Jedi Open Proxy Detector
For example, transparent proxies add, to their HTTP requests, one of two HTTP headers - VIA or PROXY_CONNECTION - that are unique to proxies, and another HTTP header - X_FOWARDED_FOR - from which the original IP address can be determined.
In contrast, Anonymous proxies, lack the X_FOWARDED_FOR header.
A few improvements have been made and more on the way.
http://www.frostjedi.com/terra/scripts/proxy.php   (247 words)

  
 A list of open-source HTTP proxies written in python
Files that are downloaded through the proxy are transparently stored in a private cache, so an exact copy of accessed remote files is created on the local machine.
It is in essence a general purpose proxy server, but especially suited for maintaining a cache of Debian packages.
'NTLM Authorization Proxy Server' (APS) is a proxy software that allows you to authenticate via an MS Proxy Server using the proprietary NTLM protocol.
http://xhaus.com/alan/python/proxies.html   (2163 words)

  
 Public Gopher Proxy @ Floodgap.com
Here is a selection of clients for multiple major platforms, including source where available, including Macintosh, various Unix and Unices, and Microsoft Windows (Gopher-hosted, via the Public Proxy).
: You do NOT need this proxy if you are using any version of Lynx, Firefox 1.5 or higher, Camino 1.0b1 or higher, any derivative of Mozilla 1.8 or higher (including Netscape), Netscape 4.8 or lower, the original webTV Internet Explorer, Microsoft Internet Explorer 3.x or lower, or HyperLink 2.5a or higher.
As the Gopher protocol enters its first decade of existence, its support among many major browsers has declined (Netscape and other Mozilla-derived browsers), or has been expunged entirely (Microsoft Internet Explorer), if the browser even ever supported it at all (Opera never has).
http://gopher.floodgap.com/gopher   (584 words)

  
 Google free proxy!
Access restricted web sites using Google language tools service as a proxy.
I need to use google's Translate Tool in my website for dynamically translating to the language option selected.
Do a search, and when the search results come back, just click on the "Cached" instead of the page's link.
http://www.oreillynet.com/pub/h/4807   (1891 words)

  
 open proxy problem - LinuxQuestions.org
hi iam using slackware 9 as a proxy to my 5 computer to access the internet and also iam using it as a mail server running sendmail....
how can it be it become a open relay???
2) Find out how to fix the open relay.
http://www.linuxquestions.org/questions/showthread.php?t=97697   (487 words)

  
 FTC and International Agencies Announce “Operation Secure Your Server”
Are you using the most current version of your proxy software and hardware?
This year’s “Operation Secure Your Server” follows on the heels of last year’s campaign against open relays, when the FTC and participating national and international agencies identified businesses with potential open relays, urged them to close the relays, and sent information on how to do so.
Open relays and open proxies are servers that allow any computer in the world to “bounce” or route e-mail through servers of other organizations, thereby disguising the real origin of the e-mail.
http://www.ftc.gov/opa/2004/01/opsecure.htm   (489 words)

  
 everywherechat.com - Add a chat room to your website.
This is often used on IRC to get around channel and server bans, or to load "floodbots"; we actively scan for them for these reasons.
Note that if you skip scanning your computer or downloading a firewall and continue to act as an open proxy/spamgate to malicious users, these blacklists can PERMANENTLY flag you.
Open proxies picked up by our scanners will also be autokilled.
http://www.everywherechat.com/faq.asp   (4381 words)

  
 HTTP Proxy Database Add an Open HTTP Proxy
Submissions are verified to determine whether or not the proxy is actually open for public use, and only hosts which can be verified as current open HTTP proxies will be added to the database.
For more information about how the system works, please see the About page.
The process is automated, but not immediate; it may take several hours before a new proxy is listed.
http://winfosec.com/proxies/add.php   (142 words)

  
 Open Proxy Honeypot - Web Application Security Consortium
The honeypot systems will conduct real-time analysis on the HTTP traffic to categorize the requests into threat classifications outlined by the Web Security Threat Classification and report all logging data to a centralized location.
From a counter-intelligence perspective, standard honeypot/honeynet technologies have not bared much fruit in the way of web attack data.
Instead of being the target of the attacks, we opt to be used as a conduit of the attack data in order to gather our intelligence.
http://www.webappsec.org/projects/honeypots   (240 words)

  
 Open Proxy Moderation Plugin - blojsom - Confluence - Java Blog Software
Added by David Czarnecki, last edited by David Czarnecki on Jan 06, 2005 (view change)
This plugin queries the Distributed Sender Blackhole List
Open Proxy Moderation Plugin - blojsom - Confluence - Java Blog Software
http://wiki.blojsom.com/wiki/display/blojsom/Open+Proxy+Moderation+Plugin   (189 words)

  
 ISS X-Force Database: risearch-show-open-proxy(16817): RiSearch show.pl allows open proxy
RiSearch is a set of freely available PERL scripts for searching Web sites for Microsoft Windows, Unix and Linux platforms.
The information within this database may change without notice.
RiSearch version 1.0.01 and RiSearch Pro version 3.2.06 running on Microsoft Windows 2000 could allow a remote attacker to use RiSearch as an open proxy server.
http://xforce.iss.net/xforce/xfdb/16817   (282 words)

  
 Library Journal - Open Proxy Servers Victimize JSTOR
These proxies allow computers to pass through other authenticated computers to gain access to secure networks.
She said that simply monitoring network use could be a simple and effective way to prevent abuse.
"These kinds of open proxy servers are a threat because if publishers get upset, they can start pulling their content." Belvadi says she wrote a cordial note to librarians at the institutions she was able to access informing them that she was not a hacker but that their systems were vulnerable.
http://www.libraryjournal.com/article/CA267708.html   (454 words)

  
 MaxMind - Realtime Open Proxy Checking
Proxycheck runs in Unix and Linux, and is open source.
The advantage of using a different port number over a SMTP server is that many ISP's block outbound connections on port 25, so hijacked computers on these networks would not be detected by open proxy checkers if you use a SMTP service to test.
Using a real time proxy checker such as proxycheck complements our credit card fraud detection service, since it detects new open proxies that haven't been added to our open proxy data feeds yet.
http://www.maxmind.com/app/proxycheck   (281 words)

  
 SEC Speech: Remarks, Open Meeting: Proxy Access Proposal (W. Donaldson) - Oct. 8, 2003
The staff and the Commission have received a significant amount of public input on this matter.
Also, the proposal would apply only to those companies where there is evidence of ineffectiveness in the proxy process.
Based on that input, the staff has developed a package of rule proposals that attempts to strike an important balance between shareholders who seek a more active voice in the proxy process, and those who have legitimate concerns about the impact of these proposals on the oversight, management, and operation of public companies.
http://www.sec.gov/news/speech/spch100803whd.htm   (680 words)

  
 njabl.org
Warning: If you have not fixed your open relay, it will be re-added to the list when it is retested a short time after it's removed.
This form will let you remove an open relay or proxy from the list if it was found by our automated testing.
The only way out is to fix your server.
http://dnsbl.njabl.org/remove.html   (337 words)

  
 Blitzed Open Proxy Monitor List
The Blitzed Open Proxy Monitor List is a DNS-based list of machines believed to run insecure proxies.
Blitzed Open Proxy Monitor, such as Blitzed (More information about the DNSBL itself).
These proxies have been abused in the past to either send spam or connect to an IRC network running a version of
http://opm.blitzed.org   (104 words)

  
 Xroxy.Com - Fresh HTTP Proxy Lists
Technical questions about Xroxy.Com web site and back-end software can be posted in our forum too.
In order to have access to most of the parts of Xroxy.Com you need to be a registered user.
There are several ways for you to receive the proxylist from our site.
http://www.xroxy.com   (281 words)

  
 ScanSSH - fast SSH server and open proxy scanner
The ScanSSH protocol scanner is distributed under a 4-clause BSD-license and completely free for any use including commercial.
ScanSSH - fast SSH server and open proxy scanner
ScanSSH supports scanning a list of addresses and networks for open proxies, SSH protocol servers, Web and SMTP servers.
http://monkey.org/~provos/scanssh   (243 words)

  
 ServerWatch Server Categories
[February 6, 2004] Windows XP Professional offers Internet Connection Sharing, which enables any computer to function similar to a proxy server.
Consider throttling them with the squid caching proxy.
At its simplest, a proxy server is a layer sitting between a LAN and an external network such as the Internet.
http://www.serverwatch.com/stypes/index.php/cHJveHk=   (455 words)

  
 Open Proxy- Recommendations - LinuxQuestions.org
Linux Server software recommendations firewall proxy email fax etc
Lets suppose my company server is an Open Proxy and in my home computer browser properties I put the proxy to be my company server.
I don't understant how a server can be an open http proxy since I only use proxies to control users from my internal network.
http://www.linuxquestions.org/questions/showthread.php?postid=351321   (591 words)

  
 Spam Links - open proxy testing
If you query the following hostnames for their TXT record you'll get common proxy ports listed in the reply:
SORBS - sorbs.sourceforge.net/ - checks incoming servers for open relays and proxies
Advanced Proxy Checker - www.astalavista.net/v2/?cmd=proxy - only HTTP
http://spamlinks.net/prevent-secure-proxy-test.htm   (178 words)

  
 Spam Links - open proxies
Filtering open proxies is an essential step in an effective spam filtering strategy.
Some open proxies are deliberately installed by a spammer on someone else's computer.
It is possible, although somewhat difficult in practice, to trace the abuser of an open proxy or trojan.
http://spamlinks.net/prevent-secure-proxy.htm   (165 words)

  
 open proxy server - definition of open proxy server by the Free Online Dictionary, Thesaurus and Encyclopedia.
open proxy server is not available in the general English dictionary and thesaurus.
You may also use the word browser links:
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
http://www.thefreedictionary.com/open+proxy+server   (90 words)

  
 www.cyberabuse.org - Take control. Volunteers organized to stop cyberabuse.
Indeed, IRC networks scan the users which connect to any of their server for potentially vulnerable proxy servers.
This project aims to clean the internet of misconfigured proxy servers, which are used more and more for abuse including spam, IRC abuse, etc.
Our database is made of information gathered from logs of proxy-scanners run on some IRC networks.
http://www.fr1.cyberabuse.org/?page=abuse-proxy   (246 words)

  
 Welcome to Proxy Information
Proxyinformation.com is designed to help meet that need.
We also provide contact information for follow up questions.
Shareholder proponents are limited to just 500 words to explain their proposals in company proxy statements.
http://www.proxyinformation.com   (334 words)

  
 Senate Closes Accidental Anonymizer
A proxy server is normally a dedicated machine that sits between a private network and the outside world, passing internal users' Web requests out to the Internet.
But they're sometimes misconfigured to accept and forward connections from the outside as well, allowing anyone on the Internet to route through the proxy with a simple browser configuration change.
Although open proxies sometime allow unauthorized ingress to an internal network, Williams said that in this case the Senate's networks were not exposed.
http://www.securityfocus.com/news/1780   (358 words)

  
 MAPS OPS
maintains copies of the spam that was sent via each open proxy as well as the results of the testing performed after a spam sample is received.
If you run your own mail server, you can configure it to utilize our list, if you'd like to refuse mail from these types of IPs.
) is a list of IPs that have been used, as an open proxy, to transmit spam.
http://www3.mail-abuse.org/ops   (127 words)

  
 Photo Matt » Open Proxy Checker
Check if comments come from an open proxy, an excellent way to stop the recent spam attacks some have been experiencing.
I mean, what legitimate comments are going to come through an open proxy anyway?
Matt points to a great concept: stopping comments that come via open proxies.
http://photomatt.net/2004/11/04/open-proxy-checker   (449 words)

  
 Anonymous Web Surfing through ProxyWeb.net
Our default SSL connection ensures privacy between your computer and our proxy servers.
Non secure http connections reveal your browsing habits, user names and passwords in some cases, to network snoopers, spies and hackers who roam public networks such as cable, ADSL and even corporate networks.
By using an anonymous proxy server its IP address is visible while yours is kept private.
http://snoopblocker.com   (180 words)

  
 eBay - open proxy items on eBay.com
Save this search to Favorites and get an email when new matching listings appear on eBay.
 3 items found for open proxy in eBay Stores.
NEW Black Open Toe Pumps by PROXY Sz 6 M
http://search-desc.ebay.com/search/search.dll?query=open+proxy&newu=1&krd=1   (155 words)

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