On 14 February 2013 12:02, Mark Fraser <mfraz74+ubu...@gmail.com> wrote:

> I've recently noticed that I've been getting lots of [UFW BLOCK] in my
> syslogs:
>
> [ 6378.481677] [UFW BLOCK] IN=eth0 OUT=
> MAC=50:46:5d:b8:7a:58:1c:c6:3c:9b:dd:0e:08:00 SRC=173.194.41.99
> DST=192.168.2.102 LEN=40 TOS=0x08 PREC=0x40 TTL=55 ID=17891 PROTO=TCP
> SPT=443
> DPT=50069 WINDOW=0 RES=0x00 RST URGP=0
>
> [ 6391.079634] [UFW BLOCK] IN=eth0 OUT=
> MAC=50:46:5d:b8:7a:58:1c:c6:3c:9b:dd:0e:08:00 SRC=173.194.66.108
> DST=192.168.2.102 LEN=40 TOS=0x00 PREC=0x00 TTL=46 ID=35432 PROTO=TCP
> SPT=995
> DPT=52449 WINDOW=0 RES=0x00 RST URGP=0
>
> Going from the above, I tried to add rules for ports 443 and 995, but the
> ports are still blocked.
>
> Any ideas?
>
>
As you probably know, port 443 is HTTPS and port 995 is POP3 with SSL. The
inbound addresses are from Google (the reverse lookup shows 1e100.net,
which is their network) which would suggest Gmail reading POP mail and
looking at a web site. Would that make sense?

s/

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