ipv6? logs?

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DarkF@der
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ipv6? logs?

Unread post by DarkF@der »

In my logwatch i got many rows with these kind of messages

Code: Select all

network unreachable resolving 'ns5.apnic.com/AAAA/IN': 2001:dc0:1:0:4777::131#53: 1 Time(s)
    network unreachable resolving 'ns5.apnic.com/AAAA/IN': 2001:dc0:6000::1:8369:2#53: 1 Time(s)
    network unreachable resolving 'ns7.virtua.com.br/A/IN': 2001:12f8:1::10#53: 1 Time(s)
    network unreachable resolving 'ns7.virtua.com.br/AAAA/IN': 2001:12f8:1::10#53: 1 Time(s)
    network unreachable resolving 'ns8.virtua.com.br/A/IN': 2001:12f8:1::10#53: 1 Time(s)
    network unreachable resolving 'ns8.virtua.com.br/AAAA/IN': 2001:12f8:1::10#53: 1 Time(s)
    network unreachable resolving 'ns86.dotcomhk.info/A/IN': 2001:500:1c::1#53: 1 Time(s)
    network unreachable resolving 'ns86.dotcomhk.info/AAAA/IN': 2001:500:1c::1#53: 1 Time(s)
    network unreachable resolving 'nsauth1.argeweb.nl/A/IN': 2001:610:0:800d::2#53: 1 Time(s)

is that ipv6?

can this be fixed ?

Greetz
biggles
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Re: ipv6? logs?

Unread post by biggles »

I remember having similar issues, but they went away when I disabled IPv6.

Code: Select all

Edit /etc/sysconfig/network and set "NETWORKING_IPV6" to "no"
Add the following to /etc/modprobe.conf :

alias ipv6 off
alias net-pf-10 off
Run /sbin/chkconfig ip6tables off to disable the IPv6 firewall
Reboot the system
Alternative (which might be easier and works on any release with /etc/modprobe.d):

# touch /etc/modprobe.d/disable-ipv6
# echo "install ipv6 /bin/true" >> /etc/modprobe.d/disable-ipv6 
With the 5.4 update symbol/ipv6 module dependency capabilities have been introduced; therefore, if IPv6 has been previously disabled as above an upgrade to the bonding driver in 5.4 will result in the bonding kernel module failing to load. For the module to load properly use instead:

# touch /etc/modprobe.d/disable-ipv6
# echo "options ipv6 disable=1" >> /etc/modprobe.d/disable-ipv6 
DarkF@der
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Re: ipv6? logs?

Unread post by DarkF@der »

biggles wrote:I remember having similar issues, but they went away when I disabled IPv6.

Code: Select all

Edit /etc/sysconfig/network and set "NETWORKING_IPV6" to "no"
Add the following to /etc/modprobe.conf :

alias ipv6 off
alias net-pf-10 off
Run /sbin/chkconfig ip6tables off to disable the IPv6 firewall
Reboot the system
Alternative (which might be easier and works on any release with /etc/modprobe.d):

# touch /etc/modprobe.d/disable-ipv6
# echo "install ipv6 /bin/true" >> /etc/modprobe.d/disable-ipv6 
With the 5.4 update symbol/ipv6 module dependency capabilities have been introduced; therefore, if IPv6 has been previously disabled as above an upgrade to the bonding driver in 5.4 will result in the bonding kernel module failing to load. For the module to load properly use instead:

# touch /etc/modprobe.d/disable-ipv6
# echo "options ipv6 disable=1" >> /etc/modprobe.d/disable-ipv6 

thanks for the info i gonna try it :P
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