Penetration Testing mailing list archives
Something strange in my logs!!!
From: nicola mondinelli <nicola.mondinelli () gmail com>
Date: Fri, 20 Jul 2007 00:10:02 +0200
situation: DMZ linux mail server with qmail. only this service is accesible from the net througth a dnat rule on the firewall. yesterday i controlled the logs: all main logs (messages wtmp btmp syslog secure ecc...) looks VERY strange: from 3 july to 18 july absolutely no record... after and before they are normal. even those rotated with logrotate are similar. the mail logs, saved in a non-standard directory, are all ok even in the period described before. executing "w" i have that the server is up from 6 days. When i logged through ssh (from the intranet, ssh is not accessible from outside, only 25/tcp port is open) i read that my last login was at 3july (and it could mainly be correct). i've downloaded chkrootkit and it says that there is nothing strange.(but we know how much trust we can give to this program) but where are all the logs of that 15 day has gone? the system was surely up and running, because the mail server worked out the mail normally (the mail logs are intact and demonstrate a normal work during that period), from the gateway i've looked for strange connections, but none was found. using "last" command i can only see my login, no information about reboot, boot or system failure. Obviusly before the 3July all is correct. any ideas? what can i do to discover something more? Thanks... Nicola ------------------------------------------------------------------------ This List Sponsored by: Cenzic Swap Out your SPI or Watchfire app sec solution for Cenzic's robust, accurate risk assessment and management solution FREE - limited Time Offer http://www.cenzic.com/c/wf-spi ------------------------------------------------------------------------
Current thread:
- Something strange in my logs!!! nicola mondinelli (Jul 20)
- Re: Something strange in my logs!!! Zed Qyves (Jul 23)
- Re: Something strange in my logs!!! Siim Põder (Jul 23)