Unfortunately the performance of DansGuardian/Squid when first .. for rebuilding DansGuardian, see question Usage#11c in the Wiki FAQ. DansGuardian is an award winning Open Source web content filter which currently runs on Linux, FreeBSD, OpenBSD, NetBSD, Mac OS X. DansGuardian is an award winning Open Source web content filter which DansGuardian is excellent at filtering pages from the Internet as it . Content is available under GNU Free Documentation License or later.
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DansGuardian – Community Help Wiki
When the RAM usage gets too large, the system will begin to swap, which often in turn will degrade performance. Finally, you also have the option to use some built-in blacklists. But the difference is not so large as to be a concern; it’s usually dansguarian to simply increase or decrease all the parameters proportionally dkcumentation lockstep.
When this happens you can dive into the inner workings of DansGuardian to tweak dansguardiian the term weighting is being applied, or you can just explicitly block or allow a partiular web dicumentation or even an entire domain. In Squid, identification of particular hosts should usually be done with dstdomain.
You can handle this situation a couple different ways:. First create create additional directories as necessary:. You can ban other file types not included in that list. If the top few lines almost always show the same application, which as far as you know should be idle, figure out why it’s sucking up so many resources, then fix it.
In some blacklist download scripts for example some versions of the urlblacklist update script the tagging functionality is already there, so all you need to do is turn it on with a simple switch. Once all the parts are up, we can now test things. For our public wireless network, we have this set to You can check if dansguardian is running with:.
Don’t confuse things by putting something else in here too, inextricably intermixing two separate things. documentaation
A second possibility is to use a tool supplied by Microsoft possibly one executing on a different computer, which opens up additional security issues.
Often Squid will at first seem to run fine, but when DansGuardian is also added and the system is loaded, overall performance will suffer dramatically. However to avoid horrid management confusion, customize OpenDNS to forbid only categories that will never be excepted proxies, phishing, malware,?
DansGuardian Documentation Wiki
DansGuardian relies on a variety of methods to determine if a page should be blocked based on your needs: More Than One Auth Method. If so, go dansguardkan and check your work.
The browser asks you for credentials, you type what you think are valid credentials, there’s no error message, but the credentials aren’t actually accepted and your request is denied. After you have configured the number of filter groups, you need to configure which users are assigned to which filter group configuration.
Another common situation arises with local logons to guest computers that are not members of your domain, as the local usernames may not correspond to the name you know users by in your domain. They do not need to be changed to accommodate the source port being random as it is after the recent fix to DNS.
Phrases to do with good subjects will have negative values, and bad subjects will have positive values. Include already match the blacklists from ‘urlblacklist’, but will need to be modified or replaced to work with other blacklists. This limitation is understandable.
Doing this both establishes your baseline as performance can’t be any better than this no matter what and. We’ll start with the master configuration files. In some cases, the Windows firewall blocks access to the ident client and you will have to add an exception in your firewall rules as follows: Blacklists that specifically block proxies.
If performance is poor with just Squid interposed in the traffic path like this, the most likely problems are:. Use only shalla blacklist. Save and close the file if you made any changes. It’s been our experience that a limit of 50 blocks way too much for a library setting. Partners Support Community Ubuntu. The performance impact may seem to be related to the number of child processes, when actually the relation is indirect through the amount of memory used.
Ubuntu Hardy and DansGuardian, Page 6 – Configuring DansGuardian
This is where you set the filter settings for each group, ie. Modify the source code and rebuild the helper program. You can if you wish install blacklists from mesd. Remember automatically launched ‘cron’ jobs don’t have the same environment as during your interactive testing; only a skeleton environment is provided for ‘cron’ jobs. Knowing which filter group a request was documenttion to can be invaluable during debugging.
If there were no errors, repeat that for the other three launchers. DansGuardian is architected as a large number of closely cooperating processes.
In this configuration all new site exceptions will always be done through OpenDNS; the DansGuardian mechanism will not be used. When browsers get the request for credentials, they just pass it along to the OSwhich answers with the credentials the user used to login with.
If you know about HTMLedit this file to your heart’s content.