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Unwanted connections

 
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Romik
Guest
PostPosted: Thu Mar 02, 2006 6:45 am    Post subject: Unwanted connections Reply with quote
Well, I really donno what's it.
Here are some logs:
tcpdump:
Code:
09:08:25.238703 IP (tos 0x0, ttl  44, id 7990, offset 0, flags [none], proto: TCP (6), length: 1460) uvox1-dls-slot3l.stream.aol.com.http > 217.107.xxx.xxx.51015: . 198912:200320(1408) ack 1 win 4096 <nop,nop,timestamp 2860882072 152581256>
09:08:25.293427 IP (tos 0x0, ttl  44, id 33768, offset 0, flags [none], proto: TCP (6), length: 1460) uvox1-dls-slot3l.stream.aol.com.http > 217.107.xxx.xxx.51015: . 200320:201728(1408) ack 1 win 4096 <nop,nop,timestamp 2871958022 152581256>
09:08:25.293488 IP (tos 0x0, ttl  64, id 49100, offset 0, flags [DF], proto: TCP (6), length: 52) 217.107.xxx.xxx.51015 > uvox1-dls-slot3l.stream.aol.com.http: ., cksum 0x16d1 (correct), 1:1(0) ack 201728 win 16512 <nop,nop,timestamp 152954441 2860882072>
2765 packets captured
5961 packets received by filter
431 packets dropped by kernel

[root@lookitup ~]#
Code:
[root@lookitup ~]# netstat -anp | grep 51015
tcp        0      0 217.107.xxx.xxx:51015         64.236.34.196:80            ESTABLISHED 23993/icecast
[root@lookitup ~]# netstat -ap | grep 51015
tcp        0      0 217.107.xxx.xxx:51015         uvox1-dls-slot3l.strea:http ESTABLISHED 23993/icecast
[root@lookitup ~]# iptables -I INPUT -s 64.236.34.196 -j REJECT
[root@lookitup ~]# iptables -I OUTPUT -d 64.236.34.196 -j REJECT
[root@lookitup ~]# netstat -anp | grep 51015
tcp        0      1 217.107.xxx.xxx:51015         64.236.34.196:80            FIN_WAIT1   -
[root@lookitup ~]# netstat -anp | grep 51015
[root@lookitup ~]#
=======================================================
Code:
[root@lookitup ~]# netstat -anp | grep ice
tcp        0      0 0.0.0.0:8034                0.0.0.0:*                   LISTEN      23993/icecast
tcp        0      0 217.107.xxx.xxx:8034          217.30.xxx.xxx:28056         ESTABLISHED 23993/icecast
tcp        0    280 217.107.xxx.xxx:8034          192.168.80.46:1766          ESTABLISHED 23993/icecast
tcp        0      0 127.0.0.1:60673             127.0.0.1:8034              ESTABLISHED 24006/ices
tcp        0      0 127.0.0.1:60676             127.0.0.1:8034              ESTABLISHED 24008/ices
tcp        0      0 127.0.0.1:60677             127.0.0.1:8034              ESTABLISHED 24010/ices
tcp        0      1 217.107.xxx.xxx:38028         64.236.34.196:80            SYN_SENT    23993/icecast
tcp        0      0 217.107.xxx.xxx:35699         64.236.34.97:80             ESTABLISHED 23993/icecast
tcp        0      0 127.0.0.1:8034              127.0.0.1:60677             ESTABLISHED 23993/icecast
tcp        0      0 127.0.0.1:8034              127.0.0.1:60676             ESTABLISHED 23993/icecast
tcp        0      0 127.0.0.1:8034              127.0.0.1:60673             ESTABLISHED 23993/icecast
[root@lookitup ~]#
YP directory listings is disabled completely.
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karlH
Code Warrior
Code Warrior


Joined: 13 Jun 2005
Posts: 5476
Location: UK
PostPosted: Thu Mar 02, 2006 11:51 am    Post subject: Reply with quote
If you are asking us why uvox1-dls-slot3l.stream.aol.com is making a connection then say so. If will be either because of you starting a relay up or some app there is connecting as a listener. As with most things with icecast, check your log file, error log will be helpful for general events like a relay starting up while access log will help with listeners connecting.

karl.
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Romik
Guest
PostPosted: Thu Mar 02, 2006 8:53 pm    Post subject: Reply with quote
Ufffff....
"Fear takes molehills for mountains", as you english-speakers say.
What confused me is that Icecast server was connected to 80'th port, but listened 8000 by default. Of cource I relayed a radio, but forgot about what port I connect to on the server I relayed.
Many thanks to you and thanks for your work.
_________________________
Romik
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