[CentOS] repeated local ephemeral to 80

Michael D. Berger m_d_berger_1900 at yahoo.com
Fri Apr 1 23:30:20 UTC 2011


On Fri, 01 Apr 2011 22:10:58 +0200, Markus Falb wrote:

[...]
>> Mar 29 17:27:20 mbrc20 kernel: IPT-DROP IN= OUT=lo SRC=192.168.9.20
>> DST=192.168.9.20 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=46910 DF PROTO=TCP
>> SPT=56624 DPT=80 WINDOW=32792 RES=0x00 SYN URGP=0 OPT
>> (0204400C0402080A4A26F7A50000000001030307) UID=0
>> 
[...]
> Too restrictive
> OUT=lo
> This is the loopback device!
> Add a rule that allows traffic from and to lo

What sort of thing might be using it?  It only shows up
every day or two.

Mike.




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