Competitor website urlblacklist.com down for over a week.

urlblacklist.com is down

urlblacklist.com not loading

Well we hate to kick sand in the face of a competitor when they are down, ( actually no, we love it ) but seriously, we have been receiving reports that they have been down for over a week now, and lets be honest, downtime is a sin, and an unforgivable one. Being a provider of critical web filtering services requires a high degree of commitment and entails a responsibility to those whom depend on you to continuously produce quality updates in a timely basis with nearly 100 percent uptime and adequate bandwidth to ensure that you provide your clients, subscribers, and members systems and applications with the level of reliability that is not only expected, but required in 2016 for such a service provider.

The good news is that we do know how to keep our website up and running, and now have available all of our blacklists compressed into a single archive, with identical directory structure for users of urlblacklist to switch to seemlessly. Squidblacklist.org is bringing to market an evolved blacklist generation method, enhanced filters and automated domain removal and addition tools, enforced whitewashing and more, multiple updates daily with bleeding edge malicious updates from multiple sources and partners, we are here to raise the standard and serve you with a higher class of blacklist, and of course, we know how to keep a webserver running.

Sign up today and find out why Fortune 500 Companies, US DoD, Governments, Universities, and Municipalities worldwide are all using blacklists from Squidblacklist.org to enhance a wide range of web filtering applications and platforms.


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New Option Available for Urlblacklist/Shallalist Compatible Platforms!


We heard you loud and clear, you wanted our enhanced blacklists in a similar archive/file structure as shallalist & urlblacklist for your web filtering platform, so we finally did it!

pfSense Blacklist Update

pfSense Blacklist Update

Available now to all squidblacklist.org members is the new “Universal Archive Structure Format” for any platform coded for shallalist or urlblacklist file structured archives!
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This new option is available for immediate download to all Squidblacklist.org visitors in the members area of the website, a subscription is required.

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Enhance your web filtering strategy with enhanced blacklists and subscribe today.


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Music website/domain blacklist for content filtering published.

We have had a video, and an image blacklist for a while now, so it only seemed right to include a music blacklist. This became clear as it was requested by one of our current members who is responsible for content filtering at an educational facility.

The new Music domain blacklist for web filtering purposes has been added to our existing line up and is available in the ‘all’ archive as well as standalone download, just as you would expect any other blacklist that we offer, this blacklist is also available in multiple formats for broad compatibility with most content filters and url filtering platforms and applications.

Enhance your web filtering strategy with enhanced blacklists and subscribe today.


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Case Study – Web Filtering & Blacklist Quality Put To The Test.

DSC00728
Web filtering is an important consideration for any enterprise – it is one of the best-known and most efficient front line defenses against hacker attacks and malicious software. One of Squidblacklist.org customers was using a solution from another vendor which had reached end of life and needed to be replaced.

The system had not been performing to the customer’s satisfaction – it had proven difficult to manage, was not cost-effective, and its limited reporting capacity required an additional application to fill in the gaps in its functionality.

The client carried out an independent evaluation and selected two blacklist providers for deployment on separate Internet links to test the varying degrees of effective filtering. Filtering policies were created based on group membership rather than individual user rules as in the previous installation, and were integrated into Active Directory.This allowed existing support staff to grant Internet access by moving users into relevant Active Directory groups rather than modifying the proxy server configuration.

Improved Web Filtering Performance

Not only did the new Blacklists from Squidblacklist.org enhance the effective application of these appliances and the performance of web filtering for the customer, they also identified a number of websites which had been previously been mistakenly blocked or likewise, websites that should have been block, not blocked at all. The client was thus able to advise the relevant organizations – which included their customers and partner organizations – that their web filtering solutions had been compromised by poor quality blacklists from websites like shalla “secure services” and urlblacklist. These issues were then easily resolved by converting to blacklists by Squidblacklist.org.

The enhanced blacklists also introduced Weaknetlabs Technology which combines the best of conventional tools with new intelligent identification algorithms. ADR automatically tracks and adds or removes different domains. More effectively producing higher class of blacklists, than first generation blacklists from other providers. It also removes the inherent weaknesses in using human-only classification to give you the most up-to-date URL blocking and control.

The customer has since found that this new setup meets their requirements to an infinitely higher degree than their previous setup.


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Study – Internet Filters Block Many Useful Sites

Access_Denied_day_02

Teenagers who look to the Internet for health information as part of their “wired generation” birthright are blocked from many useful sites by antipornography filters that federal law requires in school and library computers, a new study has found.

The filtering programs tend to block references to sex and sex-related terms, like “safe sex,” “condoms,” “abortion,” “jock itch,” “gay” and “lesbian.” Although the software can be adjusted to allow access to most health-related Web sites, many schools and libraries ratchet up the software’s barriers to highest settings, the report said.

“A little bit of filtering is O.K., but more isn’t necessarily better,” said Vicky Rideout, vice president of the Henry J. Kaiser Family Foundation, which produced the report, to be published today in The Journal of the American Medical Association. “If they are set too high, they can be a serious obstacle to health information.”

The researchers found that filters set at the least restrictive level blocked an average of 1.4 percent of health sites; at the most restrictive level, filters blocked nearly 25 percent of health sites. The amount of pornography blocked, however, was fairly consistent: 87 percent at the least restrictive level, 91 percent at the most restrictive.

The programs blocked a much higher percentage of health sites devoted to safe-sex topics: 9 percent at the least restrictive level and 50 percent at the most restrictive. The blocked pages at high levels included The Journal of the American Medical Association’s site for women’s health and a page with online information from the Food and Drug Administration about clinical trials.

To the researchers, the results mean that a school or library that uses a less restrictive setting for Internet filters can lose very little of the protective effect of the filters, while minimizing the tendency of filters to block harmless and even valuable sites.

The report is the first major study of the effectiveness of filters to appear in a peer-reviewed scientific journal, and the first to look at the effectiveness of filters at various settings. Most previous studies have been produced by organizations with a strong point of view either favoring or opposing filters. The Kaiser Foundation is a nonprofit health research group. David Burt, an antipornography advocate who is a spokesman for the filtering company N2H2 , said he was pleased with the report, which he called “very thoughtful and well designed — they recognized it matters a lot how you configure a filter and set it up.”

But opponents of filtering requirements said the study showed the technology’s clumsiness.

“Filters are just fine for parents to use at home,” said Judith F. Krug, director of the Office for Intellectual Freedom at the American Library Association. “They are not appropriate for institutions that might be the only place where kids can get this information.”

“The importance of the First Amendment,” Ms. Krug said, “is that it provides us with the ability to govern ourselves, because it guarantees that you have the right to access information. The filters undercut that ability.”

Nancy Willard, an Oregon educator who has written student guides that emphasize personal responsibility in Internet surfing, called filtering a kind of censorship that, if performed by the schools directly, would be unconstitutional.

“These filtering companies are protecting all information about what they are blocking as confidential trade secrets,” Ms. Willard said. “This is nothing more than stealth censorship.”

The study was conducted for the foundation by University of Michigan researchers, who tested six leading Internet filtering programs. The researchers searched for information on 24 health topics, including breast cancer and birth control, and also for pornographic terms. They performed the tests at each of three settings. At the least restrictive setting, only pornography is supposed to be blocked; an intermediate setting also bars sites with nudity and other controversial material like illicit drugs. The most restrictive setting possible for each product may block sites in dozens of other categories.

The researchers then called 20 school districts and library systems around the United States to ask how they set their filters. Of the school systems, which teach a half million students over all, only one set its filters at the least restrictive level.

The issue of library filtering is making its way through the federal courts. Last month the Supreme Court agreed to hear a Bush administration defense of the Children’s Internet Protection Act, the federal law requiring schools and libraries to use filters on computers used by children or to lose technology money. A special panel of the United States Court of Appeals for the Third Circuit, in Philadelphia, struck down part of the law that applied to libraries as unconstitutional. Chief Judge Edward R. Becker wrote that filters were a “blunt instrument” for protecting children.

eenagers who look to the Internet for health information as part of their “wired generation” birthright are blocked from many useful sites by antipornography filters that federal law requires in school and library computers, a new study has found.

The filtering programs tend to block references to sex and sex-related terms, like “safe sex,” “condoms,” “abortion,” “jock itch,” “gay” and “lesbian.” Although the software can be adjusted to allow access to most health-related Web sites, many schools and libraries ratchet up the software’s barriers to highest settings, the report said.

“A little bit of filtering is O.K., but more isn’t necessarily better,” said Vicky Rideout, vice president of the Henry J. Kaiser Family Foundation, which produced the report, to be published today in The Journal of the American Medical Association. “If they are set too high, they can be a serious obstacle to health information.”

The researchers found that filters set at the least restrictive level blocked an average of 1.4 percent of health sites; at the most restrictive level, filters blocked nearly 25 percent of health sites. The amount of pornography blocked, however, was fairly consistent: 87 percent at the least restrictive level, 91 percent at the most restrictive.

The programs blocked a much higher percentage of health sites devoted to safe-sex topics: 9 percent at the least restrictive level and 50 percent at the most restrictive. The blocked pages at high levels included The Journal of the American Medical Association’s site for women’s health and a page with online information from the Food and Drug Administration about clinical trials.

To the researchers, the results mean that a school or library that uses a less restrictive setting for Internet filters can lose very little of the protective effect of the filters, while minimizing the tendency of filters to block harmless and even valuable sites.

The report is the first major study of the effectiveness of filters to appear in a peer-reviewed scientific journal, and the first to look at the effectiveness of filters at various settings. Most previous studies have been produced by organizations with a strong point of view either favoring or opposing filters. The Kaiser Foundation is a nonprofit health research group. David Burt, an antipornography advocate who is a spokesman for the filtering company N2H2 , said he was pleased with the report, which he called “very thoughtful and well designed — they recognized it matters a lot how you configure a filter and set it up.”

But opponents of filtering requirements said the study showed the technology’s clumsiness.

“Filters are just fine for parents to use at home,” said Judith F. Krug, director of the Office for Intellectual Freedom at the American Library Association. “They are not appropriate for institutions that might be the only place where kids can get this information.”

“The importance of the First Amendment,” Ms. Krug said, “is that it provides us with the ability to govern ourselves, because it guarantees that you have the right to access information. The filters undercut that ability.”

Nancy Willard, an Oregon educator who has written student guides that emphasize personal responsibility in Internet surfing, called filtering a kind of censorship that, if performed by the schools directly, would be unconstitutional.

“These filtering companies are protecting all information about what they are blocking as confidential trade secrets,” Ms. Willard said. “This is nothing more than stealth censorship.”

The study was conducted for the foundation by University of Michigan researchers, who tested six leading Internet filtering programs. The researchers searched for information on 24 health topics, including breast cancer and birth control, and also for pornographic terms. They performed the tests at each of three settings. At the least restrictive setting, only pornography is supposed to be blocked; an intermediate setting also bars sites with nudity and other controversial material like illicit drugs. The most restrictive setting possible for each product may block sites in dozens of other categories.

The researchers then called 20 school districts and library systems around the United States to ask how they set their filters. Of the school systems, which teach a half million students over all, only one set its filters at the least restrictive level.

The issue of library filtering is making its way through the federal courts. Last month the Supreme Court agreed to hear a Bush administration defense of the Children’s Internet Protection Act, the federal law requiring schools and libraries to use filters on computers used by children or to lose technology money. A special panel of the United States Court of Appeals for the Third Circuit, in Philadelphia, struck down part of the law that applied to libraries as unconstitutional. Chief Judge Edward R. Becker wrote that filters were a “blunt instrument” for protecting children.


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Study – Web Filtering in Schools

slc_filtering_1

AASL Executive Summary

The American Association of School Librarians (AASL) conducted its national longitudinal survey, School Libraries Count!, between January 24 and March 4, 2012. The annual survey collected data on filtering in schools. Participants answered 14 questions ranging from whether or not their schools use filters, to the specific types of social media blocked at their schools.

This paper is an overview of the data that was collected. As the results show, filtering continues to be an important issue for most schools around the country. The data from School Libraries Count! suggests that many schools are going beyond the requirements set forth by the Federal Communications Commission (FCC) in its Child Internet Protection Act (CIPA).

AASL’s position views the social aspect of learning as important for students in the 21st century and much of the filtering software seems to discount that aspect.

Uses and Types of Filtering

When asked whether their schools or districts filter online content, 98% of the respondents said content is filtered. Specific types of filtering were also listed in the survey, encouraging respondents to check any filtering that applied at their schools. There were 4,299 responses with the following results:

94% (4,041) Use filtering software
87% (3,740) Have an acceptable use policy (AUP)
73% (3,138) Supervise the students while accessing the Internet
27% (1,174) Limit access to the Internet
8% (343) Allow student access to the Internet on a case-by-case basis

slc_filtering_2

The data indicates that the majority of respondents do use filtering software, but also work through an AUP with students, or supervise student use of online content individually.

The next question identified types of filtering software and asked respondents to select those used at their schools. There were 4,039 total responses. The top three filtering software was:

70% (2,827) URL-based
60% (2,423) Keyword-based
47% (1,898) Blacklists

Who and What Gets Filtered

When respondents were asked if content for students is filtered by their school or by the district, 100% of the 4,299 respondents answered “Yes.” Respondents also indicated that in 73% of schools, all students are filtered at the same level.

When asked if the filters affect both students and staff, 88% of 3,783 respondents said filters are used for staff, and 56% of 2,119 respondents said the same level of filtering is applied to students and staff alike.

The top four filtered content areas in schools surveyed include:

Social networking sites (88%)
IM/online chatting (74%)
Gaming (69%)
Video Services (66%)

Additional filtered content includes personal e-mail accounts, peer-peer file sharing and FTP sites. However when asked if they could request sites be unblocked, 92% of the 3,961 respondents indicated they could in the following ways:

27% (1,069) Have the site unblocked in a few hours
35% (1,386) Have the block removed in within one to two days
17% (673) Wait more than two days but less than a week
20% (792) Wait one week or more

The survey found that 68% of the decisions to unblock a site are made at the District level and only 17% of the decisions are made at the building level.
Bring Your Own Devices

slc_filtering_3

The School Libraries Count Survey! also asked which types of portable electronic devices students are allowed to bring to school. Respondents were able to select all that apply. The 4,299 responses revealed the following percentages for devices allowed:

E-readers (53%)
Cell phones (49%)
Laptops (39%)
MP3 Players (36%)
Netbooks (32%)

When students bring these items to school, 51% of 2,981 responses indicated there is a filter mechanism used for these devices.

When answering how students’ personal devices were filtered, the top five answers from 1,520 respondents were:

Through the use of the AUP (48%)
Logging on through the school network (47%)
Not having Internet connectivity (29%)
Using the discretion of the classroom teacher (28%)
Logging into a “guest” network (26%)

Impact of Filtering on Learning

The last filtering question discussed the impact that filtering has on the individual programs. Respondents were asked to select all that applied.

Of the 4,299 responses 52% indicated that filtering impedes student research when completing key word searches, 42% indicated that filtering discounts the social aspects of learning, and 25% stated that filtering impeded continued collaboration outside of person-to-person opportunities.

On the other hand, 50% indicated filtering decreased the number of potential distractions, 34% indicated filtering decreased the need for direct supervision, and 23% indicated that filtering allowed research curriculum to yield more appropriate results.

One trend revealed in the survey is that students are increasingly allowed to bring their own devices to school, but those devices are still subject to the filters. Many school librarians are reporting that true student research is being hindered by school filters, making this an issue that AASL will continue to address in the future.


Blacklists For Web Filtering Purposes.

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Using Squidguard and Pfsense to Url Filter with Domain Blacklists from Squidblacklist.org

Using Squidguard and Pfsense to Url Filter with Domain Blacklists.

pfsense Logo

URL filtering is one strategy used to filter access to websites based the domain name and/or url. There are several commercial products available for URL or domain content filtering, but you could easily build a very reliable system on your own using SquidGuard and pfSense. SquidGuard is a useful add on package for the Squid proxy server and can be used to filter or redirect web requests on the network.

SquidGuard has a long list of features that can be tailored to fit your needs. It’s also rather fast and does’nt slow down the internet for your clients. If you do need to block access to a list of unwanted websites or only allow access to a whitelist of specific web sites, SquidGuard can certainly assist with this.

SquidGuard is also very flexible, and it is easy to adapt to different applications. If you intend to do basic URL filtering on your home network or if you need to create some complicated rules for a large private or public network SquidGuard can do it.

Before you can put a web filtering proxy under pfSense into production, some configuraation is required. If you are new to pfSense I might recommend reading through the instructions that shit with pfSense.

Install the package SquidGuard Package

SquidGuard & Squid proxy can both be installed using the pfSense package manager. To access the pfSense package manager, click packs on the system menu. Select the tab available packages and scroll down where you will find SquidGuard and Squid proxy individually, click the plus sign next to each item to begin the installation.

Once the installations are complete you will have a new menu item called proxy services/filter.

Blacklists

To set up domain blacklist, open the general settings page ‘Filter Services & Proxy’. Click the checkbox to activate the domain blacklist.

You can use one of several different domain black lists publicly available on the web. You can also find a list of several blacklists from http://www.squidblacklist.org. We have our blacklists available in multiple formats, but likely, youll want the standard directory formatted archives located at the following url. http://www.squidblacklist.org/downloads/squidblacklists/squidblacklist.tar.gz


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Excluding URL blacklist

There may be some places that you need to allow your users to access. To prevent these sites from locking can create a new category of destination and add a list of domains or URLs that should not be blocked.

To do this click the target categories tab, and then click the plus sign to add a new category. You must assign a unique name to the new category, the name you choose can not contain spaces.

The target category can filter by domain name, URL, or an expression. Add a domain site will grant access to the main site and all its sub-pages. Entering a URL allows access only to that exact website. Expressions allow you to grant based on certain keywords access.

When finished, click Save, and then back to the common ACL tab or group (wherever that created the rule) and select and action whitelist for your new category.

You can also use this same method to add additional sites to its blacklist.

Filtering by Expression

In addition to the domain and URL filtering SquidGuard can create filters using regular expressions. These types of filters are great when you want to search for specific text strings in a URL to make a decision for this search. If you are unfamiliar with regular expressions can be a bit confusing at first, but there are many online resources on the subject, so I will not go into much detail about them in this article.

To create a filter that uses an expression, click the target categories tab, or create a new category or edit an existing one. Enter the expression you want to filter in the expression box and then click Save. Then go back to the common or group ACL tab and select the action (deny, permit, etc.) for your target category.

Here are some examples of filter expressions are presented. These can be edited according to what to filter. For more useful information about filtering regular expressions http://www.squidguard.org/Doc/Examples review.

Downloads based on file extension block

(* \ /.* \ (Zip | .. Rar | exe | msi | mpeg | avi))

Block certain TLDs

(.gov | .xxx | Mil | .net)

Block search “bypass proxy” on Google and Yahoo

(.*(google|yahoo).*(search_query|keywords|search|query|q|p)=.*(\+|\%20)*(proxy|bypass).*(\-|\+|\%20).*(proxy|bypass).*)

Programming rules & Time-based rules

SquidGuard also allows you to apply URL filtering based on schedules. Times are useful for applying rules at different times during the day, or only on certain days of the week.

For example, you could apply URL filtering rules strict office hours and automatically disable the rules after 17:00. If you are filtering your home network you may not want the children to visit certain sites during the school week, this is another example in which a time-based rule would be used.

To create a rule-based time, click the time tab and then click the plus sign to create a new schedule. You can create as many different times as you need.

Schedules can be applied using the ACL Groups tab. Create a new ACL or edit an existing group, then click the “time” drop-down box select the schedule you created.

Do not forget to click Apply on the General tab for the settings to take effect.

Conclusion

Commercial Web filtering devices can be very expensive and difficult to handle. PfSense SquidGuard and are completely free and very powerful. SquidGuard offers many other features that are not covered in this center. For more detailed information, visit SquidGuard.org and check out the documentation section. Also be sure to check out some of my other centers to learn about more ways to use pfSense on your network.
Guidelines pfSense

pfSense Bandwidth – Setting Traffic Shaping
Heavy users wide band can slow the entire network. This center will show you how to use pfSense to set traffic shaping to prioritize Internet traffic.
Dual Wan Router – How to load balance with pfSense
Dual WAN Routers allow you to increase the bandwidth of the Internet on your network by combining two Internet connections. Using pfSense can turn an old computer into a powerful multi WAN router.
How to set up a transparent proxy using squid pfSense
Proxy servers can be very useful for improving the speed of an Internet connection by caching, log Internet usage, or filter traffic. Learn how to set up a transparent proxy using pfSense.

Should you consider investing in a Web Filter?

Should you consider investing in a Web Filter?


When you think of web filtering what is the first visual that comes to mind? For some it’s pop-ups and notifications to update my antivirus. Today’s web filtering capabilities have become more sophisticated, and so have the criminals attempting to infect systems.

According to one study, cybercrime costs have increased by 19 percent. Let’s break down three tips for protecting your business with web filtering.

1. Don’t be cheap with your security budget, invest in web filtering software

it_guy
Similar to purchasing insurance on your business, a solid web filter will provide additional security for your network. You should be shopping for software with keyword blocking, malware filtering, social media monitoring, redirects, P2P blocking, BYOD support, user notifications, 24/7 software support and custom acl or blacklist rules for fine tuning the sites that are blocked. Such as the blacklists offered by Squidblacklist.org.

You may also want to look into software that eliminates anonymous proxies or allows your organization to block specific sites related to gambling, gaming, streaming media or any site category that should not be accessed during work hours.

All of these features are limited when you use free web filtering services. To feel peace of mind, it’s important to put a little investment into your web filtering tools.

Additionally, the extra layer of coverage may prevent an internal, yet unintentional, threat to occur because your employee landed on a bad website. In fact, according to a study by Kansas State University, roughly 60 to 80 percent of employee time is spent surfing non-work related websites. Essentially the money you spend on your web filtering software could pay off tenfold in productivity if you limit some commonly surfed websites.

2. Make web filtering required for all employee devices

This may seem like an obvious statement but with today’s flex scheduling and mobility it’s easy for older devices to get overlooked. Consider using a web filtering tool that allows you to deploy updates across multiple platforms.

The best filters allow you to manage these devices through a central dashboard and make updates, or see traffic, on an as-needed basis. While we aren’t encouraging a Big Brother mentality, it’s good to know you can see the whole picture and focus on a problem before it becomes a threat.

Another great feature of this type of filtering tool is disaster recovery. If your web filtering platform is located in a cloud environment you can access your dashboard anytime, anywhere. For chief technology officers on the go, this is also a productivity plus in the event of a potential threat.

3. Understand content filtering basics.

You may not be an IT manager or CTO, but that doesn’t mean you should avoid learning how web filtering works. At its core, web filtering is established to screen incoming traffic from the web and determine whether it should be displayed – or blocked. It is also important to understand that web filters are not a replacement for quality antivirus and anti-malware software. While some web filters can block blacklisted malware domains and links, and others offer inline scanning for viruses and malware. Many of these malicious threats are transmitted via email or various other attack vectors, such as insider threats. Ultimately the threats are difficult to completely mitigate so investing in a robust solution is critical.

It’s important to understand some of the terminology useed in the first half of this article.

For example: blocking a redirect can prevent typo squatters from redirecting your search terms to unrelated sites that host malware. A typo squatter will change a URL from its known link to a similar URL that may have one additional letter (usually a consonant). Many users do not pay attention to the domain names in search results and are not as cautious as they should be when clicking links.

Another basic web filtering term is “anonymous proxies.” These are tools that facilitate anonymous traffic, making sources untraceable and can be, and are often used for the purpose of bypassing web filters. These proxies are typically used to mask malicious or otherwise criminal activity on the internet and block the location of a specific threat.

If you find that many of the terms mentioned in your web filtering research are too complicated we recommend using a google to do your homework. This helpful tool is also handy when you’re researching other IT security tools such as backup, antivirus, operation systems, and more.

So there is little question that you need a web filtering tool. Now that you are equipped with the resources and understanding to purchase an effective solution, we recommend that you act immediately on this mission. Your employees are landing on thousands of websites a day and the liability falls on the organization to protect your assets, your data, and your network. Ultimately it is your brand that could suffer from a security breach.

Strong categorized domain blacklists from Squidblacklist.org

A critical component of an effective content control strategy.


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Updating Blacklists For RouterOS From Squidblacklist.org

To automatically download or update your blacklists from Squidblacklist.org onto your RouterOS devices, there are several methods, but the most straightforward is going to likely be using winbox and the system scheduler.

To update your blacklists we can use the following example to fetch tik-ads.rsc:


/tool fetch address=www.squidblacklist.org host=www.squidblacklist.org mode=http src-path=/downloads/squidblacklists/tik/tik-ads.rsc user=some-username password=some-password

Updating your blacklists is easy!

Updating your blacklists is easy!

Also see Mikrotik RouterOS Malicious IP Blacklist – Firewall Import Script – Gratis
Mikrotik RouterOS Blacklist Validation Testing & Compatibility Chart Update Posted.
Mikrotik RouterOS Blacklists


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Squid Proxy: Creating custom error pages for each ACL

I have been asked several times how to do create custom error pages for each acl in squid proxy, so Im going to write a small blog entry on the subject in the hopes that somebody will find it useful. It isnt rocket science and it is not complicated.

This is the result a user might see using a custom squid error page..

This is the result a user might see using a custom squid error page..

When using many different acls to control traffic, one may choose to have some different error pages to indicate which specific ACL is was that blocked traffic. This is crude and gets the job done without complicated cgi scripts. The reasons for doing this are simple, sometimes its nice to know which blacklist is blocking your content, specifically in the case of a false entry or a domain that you would like to add an exception for.

In the following excerpt from a squid.conf you can see the required entries are made to allow for custom error pages for porn, malicious and ads. This is all that is required as far as the conf is concerned to get this done.

deny_info ERR_PORN_ACCESS_DENIED porn
http_access deny malicious
deny_info ERR_MALICIOUS_ACCESS_DENIED malicious
#http_access deny dating
#http_access deny gaming
#http_access deny gambling
#http_access deny piracy
#http_access deny proxies
#http_access deny pharma-rx
#http_access deny blasphemy
http_access deny ads
deny_info ERR_ADS_ACCESS_DENIED ads

Locating Squid default error pages in a terminal.

Locating Squid default error pages in a terminal.

Of course, you will need to create these files and put them in your default error page templates directory located on your Squid Proxy machine. The file ( ERR_ADS_ACCESS_DENIED ) in this case, is not simply a copy of the default file that ships with the precompiled version of Squid we installed on a Debian box, but rather one of our custom error pages available from www.Squidblacklist.org ( ERR_ACCESS_DENIED ) was copied and the text “CATEGORY MALICIOUS” was added.

If you are unable to find these files or are lost and cannnot find the directories where these files are stored on your squid proxy server, simply run a locate command to see if you can find them as shown in the following image.

Locate squid default error pages from a terminal session.

Locate squid default error pages from a terminal session.

If you are interested in some default error pages, we do have some available for download here.


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Also see:
Page Free blacklists suck , and heres why.