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Documentation for razor-caching-proxy.pl Copyright 2002 William Stearns (wstearns@pobox.com) This documentation and the razor-caching-proxy.pl script are both released under the GPL. (Quickstart at the end) razor-caching-proxy.pl is a perl script that acts as a caching proxy for razor (http://razor.sourceforge.net) spam queries. The permanent site for this package is http://www.stearns.org/razor-caching-proxy/ . As of version 0.3.0, the script is generally functioning, but has not been extensively tested. Translation: it seems to work pretty well here, but it needs a few more pairs of eyes to check it over. Plese send any feedback, patches, feature requests to William Stearns (wstearns@pobox.com). The proxy does _not_ need to run as root. I'd strongly recommend running it as a completely new user; just create the log file writable by that user and the cache file readable and writable by that user. If you've used a version up to 0.2.3 and want to move up to version greater than or equal to 0.3.0, you'll either need to delete your cache or add a timestamp to the beginning of each line; easily done with the following commands: #shutdown current (up to) 0.2.3 razor cache cat /var/cache/razor/razor-cache | sed -e "s@^@`date +%%s`/@" >/var/cache/razor/razor-cache.v3 less /var/cache/razor-cache.v3 #Check that timestamps were added as the first field. mv -f /var/cache/razor/razor-cache.v3 /var/cache/razor/razor-cache #startup new 0.3.x (or greater) razor cache The proxy can now set maximum ages for positive and negative entries with the --max_pos_age (seconds) and --max_neg_age (seconds) command line parameters. For example, if you only want to cache Positive entries for 1 day, add "--max_pos_age 86400" to the proxy command line. Your cache file may hold entries older than a day, but they won't be used in an invocation of the proxy with that parameter. I'd suggest a relatively small number for negative entries (the default is 2 hours) and a much larger entry for positive (default 30 days). To test the basic network operation of the script, copy the script to some directory in your path, make it executable, enable the tcp echo port on your machine and run: razor-caching-proxy.pl --server_n=localhost:7 --ca=/tmp/razor-echo-cache --foreground --v --v then: telnet localhost 2702 in another window. In the telnet session, hand the proxy requests such as: key:d97b1764b257f4f67a7d7fc9e6988aace12c5a56&action:lookup End your input with a single '.' (no quotes) on a line by itself. By declaring that the real razor server can be found at localhost:7 (the echo port), we get whatever we typed back as a response. Good for basic networking and functionality tests only. Because the echo port never closes the connection at its end, the proxy children that actually handle client requests don't close correctly. You'll need to kill them off by hand at the end of testing. To start it up as a full caching proxy, create /var/log/razor, make it writable by the user who will be starting the daemon, and run: razor-caching-proxy.pl -v To start a simple test client run to check functionality: cat testkeys | nc localhost 2702 cat testkeys | nc localhost 2702 Each run should return: Vipul's Razor 1.11, protocol version 2. Negative 52b08efcfed6a9911248ce7592f9b08d7949d840 Positive d97b1764b257f4f67a7d7fc9e6988aace12c5a56 Positive f02b50ba6ac221e1ca423ca8d96e82d581314d81 Unknown command. The testkeys file included with this package looks like this: key:52b08efcfed6a9911248ce7592f9b08d7949d840&action:lookup key:d97b1764b257f4f67a7d7fc9e6988aace12c5a56&action:lookup key:f02b50ba6ac221e1ca423ca8d96e82d581314d81&action:lookup . The first is not a spam, the second and third are (the second one is the key from the spam distributed with razor-agents). To create your own keys to add to this test file: cat raw.message | razor-check -H | sed -e 's/^/key:/' -e 's/$/\&action:lookup/' If you're comfortable with its operation, you can instruct the razor client programs (razor-check, etc.) to use it: sudo chattr -i /home/wstearns/.razor.lst mcedit /home/wstearns/.razor.lst #Add the line "127.0.0.1" (or the IP of your proxy) to the top #of the file. Save and exit sudo chattr +i /home/wstearns/.razor.lst Now do the same for .razor-report.lst : sudo chattr -i /home/wstearns/.razor-report.lst mcedit /home/wstearns/.razor-report.lst #Add the line "127.0.0.1" (or the IP of your proxy) to the top #of the file. Save and exit sudo chattr +i /home/wstearns/.razor-report.lst To see all options: razor-caching-proxy.pl --help For some reason, I can't get the following approach to work: touch ~/razor.cache.conf mcedit ~/razor.cache.conf #add listfile = /home/wstearns/.razor.cache.lst turn_off_discovery rediscovery_wait = 86400000 debug #(86400000 seconds = 1000 days) echo 127.0.0.1 >~/.razor.cache.lst razor-check -conf=~/razor.cache.conf [other params] To instruct the cache to recheck all stale entries, try: ( cat /var/cache/razor/razor-cache | grep 'Positive' | sort | \ sed -e 's@^[^/]*/@@' -e 's@/[^/]*$@@' ; echo '.' ) | nc localhost 2702 Sufficiently young answers will be answered from cache, too old answers will be resent to the server for revalidation. This should be done at some time between 1 and 7 am to reduce load on the main servers. Unfortunately, the servers only answer 20 queries at a time, so I need to think about this a little more. To run independantly, i.e. without any parent server to consult, add --server_name '' Server Setup Quickstart: As root, go to the directory to which you downloaded razor-caching-proxy.pl and razor-cache (substitute a non-root username for wstearns): # cp -p razor-caching-proxy.pl /usr/bin # mkdir /var/cache/razor # cp -p razor-cache /var/cache/razor/razor-cache # chown -R wstearns.wstearns /var/cache/razor # touch /var/log/razor # chown wstearns.wstearns /var/log/razor # chown -R wstearns.wstearns /var/cache/razor Now switch to the non-root user that owns those files: $ razor-caching-proxy.pl -v or run the following as root: su wstearns -c '/usr/bin/razor-caching-proxy.pl -v' To start on every boot, as root edit /etc/rc.d/rc.local and add: su wstearns -c '/usr/bin/razor-caching-proxy.pl -v'
The files in this collection are part of William Stearns' software archive. If any of the links on this page do not work, you may be viewing an incomplete mirror. There is a complete list of the mirror sites at the starting page for this mirror and at the primary mirror.