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This plugin is based on the check_radius (radauth.c by Matt Miller). Basicly it will check authentication against radius server.
Current Version
Last Release Date
June 3, 2009
Owner
Nagios Exchange
Compatible With
A sample attributes file
The plugin
Advanced features The advanced featetures compared to original check_radius are: * radius attributes used for the authentication can be defined. * command paramater for which radius reply ends in an ok state * command parameter to check the Reply-Msg from the radius server Installation Just unpack the file. And afterwards use ./configure and make Usage check_radius_adv Usage: # ./check_radius_adv OPTIONS... OPTIONS -v verbose (output with verification) -u [username] cleartext username -p [password] cleartext password -s [shared secret] shared secret for RADIUS server -r [radius server] radius server to auth -c [radius port] radius server port (default: 1812) -t [auth timeout] interval to wait until auth timeout in seconds (default: 30 sec.) -a [attributes] filename of the attributes file (see samplefile) -o [ok state] auth reply code which will return ok state (default: 2 = accepted) -e [error code] plugin error-code in case reply code differs (default: 2 = critical) -m [replymsg] expected replymsg (type=18) (default: "") -h this menu Additional Attributes You can add Strings, Integers, Addresses and Times. But please, check the attached samplefile Credits This plugin was kindly sponsored by T-Mobile Changelog * **2006-03-22** Parameters with hexvalues (e.g. /x3B for a semicolon) as patterns are translated into their ascii characters. //That is why / has also be escaped as ``//``//. * failure was not recognize if length of replymsg was longer than the expected * **2006-08-23** Corrected string handling - changed c-style strings to rfc-conform strings. Parameters with /x00 did not work correctly.
Heloo ERROR: [root@paklic plugins]# ./check_radius_adv -u [email protected] -p infousek -s radiusheslo -r 10.27.24.4 WARNING: Reply-Msg differs! ('' != '?F??F??????????F') Access ACCEPT. (code = 2) | rtt=0.0029 rttms=2.9079 :D :D :D : [root@paklic plugins]# ./check_radius_adv -u [email protected] -p infousek -s radiusheslo -r 10.27.24.4 -O ./check_radius_adv: invalid option -- 'O' OK: Access ACCEPT. (code = 2) | rtt=0.0037 rttms=3.6969 [root@paklic plugins]# OK: [root@paklic plugins]# ./check_radius_ih -u [email protected] -p infousek -s radiusheslo -r 10.27.24.4 OK: Access GRANTED. (code = 2) | rtt=0.0027 rttms=2.7389 [root@paklic plugins]# Havrla
I can also attest to tguthmann's experience, with approximately 1% of tests failing because the hash is sent blank. tguthmann, could you publish the patch file in full ? it seems the site has trimmed the code. We are eager to try the patched version!
Hi, Just a comment to say this plugin is great and easier to use than check_radius. However, we found a bug which happen once in a while (~1% of the time). The hash is empty. Indeed hash=0000000000000000. Why I really don't known... After adding more debug, I found the bug in this loop of fnGeneratePasswordHash: /* as long as the cipher block is valid, concatenate it onto our hash * password */ (while ((x rors by doing that. So if someone, smarter than me can fix this with more elegance. Feel free. In the mean time, applying the following patch assure that over 100k tests in a row, you don't have any errors like we had before. Thomas ----snip----snip----- --- check_radius_adv.c.ORI 2010-09-09 18:09:55.258325002 +1000 +++ check_radius_adv.c 2010-09-09 18:13:17.435608325 +1000 @@ -580,7 +580,7 @@ int fnGeneratePasswordHash(RADIUS_HEADER *radhead) { - unsigned char b[8][16], p[8][16], c[8][16]; + unsigned char b[8][16], p[8][16], c[8][16], hash[128]; unsigned char ssra[49]; int currlen = 0, pwlen = global.password.pw_clear[0], bpos = 0, ppos = 0, cpos = 0, x, sslen; @@ -588,6 +588,7 @@ memset(b,0,128); memset(p,0,128); memset(c,0,128); + memset(hash,0,128); memset(ssra,0,49); sslen = global.sharedsecret[0]; @@ -631,8 +632,10 @@ /* from 0 to 16, XOR the clear text password with the hashed * md5 output */ - for (x = 0; x
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