Problem s telnet.d

[ktunka]

> Je mozne, ze Vas poskytovatel chrani pred pouzitim "spatnych" sluzeb. Uz
> jsem se jednou dohadoval s tech. supportem u Oskara.
> 
> V kazdem pripade byste mel pomoci tcpdump zjistit, zda opravdu nechodi
> vubec nic a ktere porty to delaji/nedelaji.
> 
Prikladam vypis tcpdump. Poradil by mi nekdo, co je spatne?
tcpdump: listening on eth1
07:53:53.798350 62.141.24.128.7209 > zsprazska.cz.telnet: S 676739584:676739584(0) win 7800 <mss 1560>
07:53:53.798421 zsprazska.cz.telnet > 62.141.24.128.7209: S 1457252934:1457252934(0) ack 676739585 win 32120 <mss 1460> (DF)
07:53:55.312650 62.141.24.128.7209 > zsprazska.cz.telnet: . ack 1 win 7800
07:53:55.322364 62.141.24.128.7209 > zsprazska.cz.telnet: P 1:2(1) ack 1 win 7800
07:53:55.322459 zsprazska.cz.telnet > 62.141.24.128.7209: . ack 2 win 32120 (DF) [tos 0x10] 
07:53:55.323829 62.141.24.128.7209 > zsprazska.cz.telnet: P 2:3(1) ack 1 win 7800
07:53:55.327175 zsprazska.cz.telnet > 62.141.24.128.7209: . ack 3 win 32120 (DF) [tos 0x10] 
07:53:55.623264 zsprazska.cz.telnet > 62.141.24.128.7209: P 1:13(12) ack 3 win 32120 (DF) [tos 0x10] 
07:53:58.617173 zsprazska.cz.telnet > 62.141.24.128.7209: P 1:13(12) ack 3 win 32120 (DF) [tos 0x10] 
07:53:58.917039 62.141.24.128.7209 > zsprazska.cz.telnet: P 3:4(1) ack 13 win 7788
07:53:58.917225 zsprazska.cz.telnet > 62.141.24.128.7209: P 13:16(3) ack 4 win 32120 (DF) [tos 0x10] 
07:53:58.922372 62.141.24.128.7209 > zsprazska.cz.telnet: P 4:5(1) ack 13 win 7800
07:53:58.923789 62.141.24.128.7209 > zsprazska.cz.telnet: P 3:4(1) ack 13 win 7788
07:53:58.923815 zsprazska.cz.telnet > 62.141.24.128.7209: . ack 5 win 32120 (DF) [tos 0x10] 
07:54:01.267171 62.141.24.128.7209 > zsprazska.cz.telnet: . ack 13 win 7800
07:54:04.917170 zsprazska.cz.telnet > 62.141.24.128.7209: P 13:16(3) ack 5 win 32120 (DF) [tos 0x10] 
07:54:16.917171 zsprazska.cz.telnet > 62.141.24.128.7209: P 13:16(3) ack 5 win 32120 (DF) [tos 0x10] 
07:54:40.917171 zsprazska.cz.telnet > 62.141.24.128.7209: P 13:16(3) ack 5 win 32120 (DF) [tos 0x10] 
07:55:28.917171 zsprazska.cz.telnet > 62.141.24.128.7209: P 13:16(3) ack 5 win 32120 (DF) [tos 0x10] 
07:56:23.108923 62.141.24.128.7209 > zsprazska.cz.telnet: R 676739589:676739589(0) win 7797
07:56:23.111055 62.141.24.128.7209 > zsprazska.cz.telnet: R 676739589:676739589(0) win 7797
07:56:23.112470 62.141.24.128.7209 > zsprazska.cz.telnet: R 676739589:676739589(0) win 7797
07:56:23.114040 62.141.24.128.7209 > zsprazska.cz.telnet: R 676739589:676739589(0) win 7797
07:56:23.203519 62.141.24.128.7209 > zsprazska.cz.telnet: R 676739589:676739589(0) win 7797

24 packets received by filter
0 packets dropped by kernel
 

-- 
Kamil Tunka