what process is sending this packet?

Matthias Apitz guru at unixarea.de
Mon Dec 27 14:40:03 UTC 2010


El día Monday, December 27, 2010 a las 06:30:05AM -0800, S Mathias escribió:

> I can see, that theres a program that keeps sending packets on port 25:
> 
> Dec 27 14:11:46 a kernel: [ 6336.992320] O_D_LOG: IN= OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=61533 DF PROTO=TCP SPT=37263 DPT=25 WINDOW=32792 RES=0x00 SYN URGP=0 
> Dec 27 14:12:01 a kernel: [ 6352.635704] O_D_LOG: IN= OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=55853 DF PROTO=TCP SPT=40644 DPT=25 WINDOW=32792 RES=0x00 SYN URGP=0 
> Dec 27 14:12:04 a kernel: [ 6355.641085] O_D_LOG: IN= OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=55854 DF PROTO=TCP SPT=40644 DPT=25 WINDOW=32792 RES=0x00 SYN URGP=0 
> Dec 27 14:12:10 a kernel: [ 6361.649059] O_D_LOG: IN= OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=55855 DF PROTO=TCP SPT=40644 DPT=25 WINDOW=32792 RES=0x00 SYN URGP=0 
> 
> but where or how could i find out, that what process sends these packets?

looks like local delivery (127.0.0.1) of mail (port 25); you might catch
the proc with lsof (from ports collection);

HIH

	matthias
-- 
Matthias Apitz
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