Am 15.03.2013 14:03, schrieb Mateusz Marzantowicz: > W dniu 15.03.2013 11:09, Georgios Petasis pisze: >> Στις 15/3/2013 11:57 πμ, ο/η Ed Greshko έγραψε: >>> On 03/15/13 17:46, Ed Greshko wrote: >>>> Is the destination IP address a single IP address or are there others. >>>> >>>> Is your system running a DNS server? If you are running one, is it >>>> supposed to be servicing requests from the >>>> Internet? If it is supposed to be taking requests from the Internet, have >>>> you made sure to configure such that >>>> recursion is disabled. >>> Never mind.... >>> >>> In re-reading the original message I see the "source port" is 35442. I'm >>> pretty sure recursion from a DNS >>> server would show 53 as the source port. >>> >>> >> I have used nslookup with the local machine as server, and I was not able to >> resolve anything. >> Also, the dnsmasq configuration is empty. I think I am not running a dns >> server... >> > Sorry, but can't you just type netstat -aptul as root to see what connections > are active? > Status of services can be checked using systemctl tool: systemctl status > named.service
you can - but after a intrusion you can not trust any output of system-tools because you are not in the position to say 100% if the first intrusion did not use a local root-exploit after it's first run and modified your system in a way making it hard to detect rootkits
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