Release 5.1 a UDP protokol

Rudolf Cejka cejkar at fit.vutbr.cz
Tue Oct 14 11:19:36 CEST 2003


Vopěnka Radek wrote (2003/10/14):
> Hledal jsem to v archivu, FAQ atd ale bez uspechu, je mozne ze jsem se
> pehledl. Muzte mi nekdo poradit kde mam chybu? Cely system je postaven na
> i386. Firewally mam pridane jako option do jadra a je prekompilovane.
> Default je accept. Spojeni na jakykolv port 80, 22 atd funguje v pohode,
> ale na UDP ne.

Tim napr. myslite, ze v

# uname -a
FreeBSD ... 5.1-RELEASE FreeBSD 5.1-RELEASE #0: Tue Aug  5 16:41:12 CEST 2003

prikaz netstat nevypisuje zadny radek s udp4/dgram?

# netstat
Active Internet connections
Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)
...
tcp4       0      0  localhost.57885        ftp-master.freeb.5998  ESTABLISHED
tcp4       0  33304  localhost.57883        ftp-master.freeb.cvsup ESTABLISHED
...
udp4       0      0  localhost.ntp          *.*
Active UNIX domain sockets
Address  Type   Recv-Q Send-Q    Inode     Conn     Refs  Nextref Addr
...
c8195460 stream      0      0        0        0        0        0
c8195c08 stream      0      0        0 c8195b7c        0        0
...
c81958c0 dgram       0      0        0 c8196000        0 c81952bc
c81952bc dgram       0      0        0 c8196000        0 c819508c
c819508c dgram       0      0        0 c8196000        0 c8195000
...

U tohoto stroje je rozdil, ze na nem neni zadny firewall, takze nejspis
musite zkouset timto smerem.

-- 
Rudolf Cejka <cejkar at fit.vutbr.cz> http://www.fit.vutbr.cz/~cejkar
Brno University of Technology, Faculty of Information Technology
Bozetechova 2, 612 66  Brno, Czech Republic



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