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Old 11-13-2011, 05:06 PM
Klaus Klein
 
Default Bug#648635: rpc.nfsd still utilizes tcp6/udp6 ports when IPv6 is disabled

Package: nfs-kernel-server
Version: 1.2.5-2
severity: minor

Environment: - Dell Latitude 8100
- Debian Wheezy (testing)
- Kernel 3.0.0-1-686-pae

IPv6 is disabled by 'echo net.ipv6.conf.all.disable_ipv6=1 > /etc/sysctl.d/disableipv6.conf'.
Furthermore the tcp6 and udp6 entries in /etc/netconfig are commented out.

Nevertheless 'netstat -lp', before and after starting the nfs-kernel-server, shows that rpc.nfsd still utilizes tcp6/udp6 ports.

user@host:~# diff before after
3a4,8

tcp 0 0 *:56535 *:* LISTEN -
tcp 0 0 *:38042 *:* LISTEN 1154/rpc.mountd
tcp 0 0 *:nfs *:* LISTEN -
tcp 0 0 *:48747 *:* LISTEN 1154/rpc.mountd
tcp 0 0 *:34316 *:* LISTEN 1154/rpc.mountd

4a10,11

tcp6 0 0 [::]:52795 [::]:* LISTEN -
udp 0 0 *:42604 *:* 1154/rpc.mountd

6a14,18

udp 0 0 *:nfs *:* -
udp 0 0 *:49677 *:* -
udp 0 0 *:59174 *:* 1154/rpc.mountd
udp 0 0 *:60462 *:* 1154/rpc.mountd
udp6 0 0 [::]:37407 [::]:* -


How can this behavior be turned off?

Rgds,
Klaus




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