Proxy Server Detection and Blocking – WhatIsMyIP.com®
Proxy server detection can acquire a user with online anonymity. Anonymity is readily obtained online. Anyone can hide their identity using a proxy server, a virtual private network, Tor or other anonymity network. Moreover, such systems provide a useful service for many users.
However, they pose significant challenges for webmasters who need to control access to their websites. Even to know their customers, and fight fraud. Therefore, a webmaster can easily become overwhelmed by the hundreds of thousands of proxies online and the vectors for abuse they present. Proxy server detection is a great help with these challenges.
Block Proxies
Common methods of blocking proxies include manual and automated solutions. Manually blocking proxies requires both an understanding of the many types of proxies in use on the Internet as well as an up-to-date list of proxy IP addresses. There are several websites that publish blacklists or blocklists, however, they may not be reliable or useful for a particular purpose.
Approximately 30% of proxy IP addresses change each day, making it difficult and time consuming to maintain a good blacklist or blocklist. Once you have a blacklist or blocklist, the next step is to insert it into a firewall or. htaccess file. The performance of a website can have a negative impact according to a blacklist or blocklist.
The best all-in-one solution to blocking proxies is BlockScript. BlockScript detects and blocks all proxies, anonymity networks, rogue bots and spiders, undesirable countries, and more. The BlockScript software automatically updates itself each day with its custom blacklist or blocklist data. Start your one week free trial today and let BlockScript protect your website from unwanted visitors.
How to Block Anonymous Proxy Servers at Your Firewall
Hackers will often hide their identities while attempting to gain unauthorized access to vulnerable servers. If a hacker is using an anonymous proxy server, you can block access via the Windows firewall application. As long as you have the IP address of the proxy server, you can block it by creating a new rule in the firewall. Obtain the IP address of the anonymous proxy server from your Web server’s logs. Log in to your Windows 8 account and then point the mouse at the lower right corner of the desktop. The sidebar menu opens. Click “Control Panel” in the sidebar menu, and then click on “System and Security. ” Click the “Windows Firewall” option. The Firewall screen opens. Click the “Advanced Settings” option, and then click on “Inbound Rules” in the left navigation pane. Click the “New Rule” option. The New Inbound Rule wizard opens. Click the radio button next to the “Custom” option, and then click “Next. ” Click the “All Programs” radio button, and then click the “Next” button. Click the “Protocol Type” drop-down box. Click on “All Ports. ” Click the “Local Port” drop-down box and select the “All Ports” option. Click the “Remote Port” drop-down box. Select the “All Ports” option and click “Next. ” Click the radio button next to the “Any IP Address” option for the Local Ports section, and then click the radio button for “These IP Addresses” in the Remote Ports section. Type the IP address for the anonymous proxy server, click the “Add” button, and then click “Next. ” Click the “Block the Connection” option, and then click “Next. ” Tick the check boxes for all three options: “Domain, ” “Private” and “Public. ” Type a name and description for the new rule; then click the “Finish” button. References Writer Bio Terry Parker is a writer based in Texas. She specializes in writing technical and marketing materials for a wide variety of clients, ranging from small businesses to Fortune 500 companies.
So…What Is Blacklisting? (Part 1) | Salesforce Pardot
October 23, 2014 | 3 minute read
Blacklisting. It’s such a scary word, isn’t it? Today’s post is the first in a series of posts that will explain what it means to be blacklisted, how you might end up on a blacklist, how to get off that blacklist, and blacklist prevention. Hopefully, this series will help demystify blacklisting to some degree.
To start off with some background on why blacklisting is necessary, consider this: 90% of all email sent worldwide is considered spam email. If we didn’t have some way of sorting through the legitimate email versus the spam email before it even hit your inbox, you’d never be able to accomplish anything! In addition to this, spam messages cost internet service providers (ISPs) money to store messages on their servers, so there needed to be a valid, timely way to determine if a message should be accepted or rejected outright. The first blacklist was created in 1997 and we haven’t looked back since.
So what is a blacklist?
A blacklist is a (generally) publicly available real-time database that receiving servers can query in order to obtain information on the reputation of an IP address or domain used to send email. Receiving servers use blacklisting information to help determine if an email should be accepted or rejected. If an IP address or domain is on a blacklist, it’s been reported as a “known” source of spam. It’s important to note that if an IP address or domain is not on a blacklist, it doesn’t necessarily mean the IP or domain isn’t a spammer. It simply means nothing can be explicitly said about the IP or domain, so the receiving server would then need to use other methods to determine if an email is coming from a reputable source or not. Spamhaus has a great infographic that provides a bit more of a visual overview of how blacklisting works when an email hits a receiving server.
Are there different types of blacklists?
There are a few types of blacklists, but I’m going to focus on the most common types I handle in my role as a compliance specialist: private blacklists (such as Hotmail, McAfee, and Cloudmark) and public blacklists (such as Spamhaus, SORBS, and Spamcop). Private blacklists tend to be based on strict spam filtering and are not able to be queried externally, meaning you won’t know you’re on these particular blacklists until you begin receiving bouncebacks from those particular spam filters. There’s no way to specifically determine exactly why you’d gotten listed on a private blacklist. Conversely, public blacklists, such as Spamhaus and Spamcop, can be searched to determine if your IP address is on a blacklist, so it’s easy to know you’re listed and resolve the listing before you start sending email. A good site to check for IP-based blacklisting is MX toolbox, as it queries a number of blacklists in one easy-to-read format. In Pardot’s case, we get daily reports of major blacklistings on any of our IP addresses and will reach out to you if we determine you have caused or are the victim of having your sending IP address blacklisted.
Which blacklists should I pay attention to?
While there are hundreds of blacklists in existence, not all blacklists are created equally. There are a few notable blacklists that will significantly impact your sending reputation and deliverability if you find your IP is listed on them. These blacklists are:
Spamhaus
Spamcop
SURBL
SORBS
URIBL
Other, smaller blacklists aren’t quite as important and aren’t as widely used as the “big five” players in blacklists. This definitely doesn’t mean they should be entirely ignored, as one listing can be indicative of a larger problem down the road, but you also shouldn’t be overly concerned if you’re listed on a minor blacklist. If it’s an important enough listing to cause trouble, we’ll be the ones to let you know!
So how do you get onto a blacklist? Stay tuned for part two of our blacklisting series, “How do I get on a blacklist? ”
Frequently Asked Questions about proxy server blacklist
Can proxy server be blocked?
If a hacker is using an anonymous proxy server, you can block access via the Windows firewall application. As long as you have the IP address of the proxy server, you can block it by creating a new rule in the firewall. Obtain the IP address of the anonymous proxy server from your Web server’s logs.
How do you get off the blacklist?
and enables you to manage and block spam calls….Remove Number from Block ListFrom a Home screen, navigate: Apps > Call Filter .Tap the Menu icon. (upper-left).Tap Block management.Tap a blocked number.Tap Unblock number.Tap Unblock.
What is a server blacklist?
A blacklist is a (generally) publicly available real-time database that receiving servers can query in order to obtain information on the reputation of an IP address or domain used to send email. … If an IP address or domain is on a blacklist, it’s been reported as a “known” source of spam.Oct 23, 2014
