ULOG und Netzwerkprobleme??

[firestonez]

Hallo,
ich erhalte im 20 Sekunden Takt immer folgende Meldung in /var/log/syslog:

Code: Alles auswählen

Feb  5 23:10:55 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:10:55 localhost kernel: ipt_ULOG: Error building netlink message
Feb  5 23:11:15 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:11:15 localhost kernel: ipt_ULOG: Error building netlink message
Feb  5 23:11:55 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:11:55 localhost kernel: ipt_ULOG: Error building netlink message
Feb  5 23:12:15 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:12:15 localhost kernel: ipt_ULOG: Error building netlink message
Feb  5 23:12:35 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:12:35 localhost kernel: ipt_ULOG: Error building netlink message
Feb  5 23:12:55 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:12:55 localhost kernel: ipt_ULOG: Error building netlink message
Feb  5 23:13:15 localhost kernel: ipt_ULOG: error during NLMSG_PUT
Feb  5 23:13:15 localhost kernel: ipt_ULOG: Error building netlink message

Was bedeutet das?

Danke im Voraus!

[mistersixt]

Laut man page von "iptables" ist das ULOG:

Code: Alles auswählen

   ULOG
       This  target provides userspace logging of matching packets.  When this
       target is set for a rule, the Linux kernel will multicast  this  packet
       through a netlink socket. One or more userspace processes may then sub-
       scribe to various multicast groups and receive the packets.  Like  LOG,
       this  is  a  "non-terminating target", i.e. rule traversal continues at
       the next rule.

Sprich, Du kannst offensichtlich Logeinträge per Multicast ins LAN schicken und mit anderen Tools wieder einlesen. Vermutlich geht das Senden der Multicasts schief und daher kommen die Fehlermeldungen. Schau Dir mal alle Regeln Deines iptables-Scriptes bezgl. "--ulog*" an. Vielleicht siehst Du da was "Offensichtliches".

Gruss, mistersixt.

[firestonez]

Jo, danke!!!
Das war es!