I'm setting up postfix on centos 6, struck some weird (to me) issues;

at first, I was able to telnet localhost 25/ehlo etc

but, now I can telnet anymore, telnet session gets hunged till I kill
postfix, and, I get ipv6 :::1 line after executing telnet

so I guess..? I should disable ipv6...?

I can still telnet OK to amavisd

I tried this from centos wiki:
sysctl -w net.ipv6.conf.all.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1

but I still get output to
lsmod | grep ipv6

any suggestions ?
am I on right track ?



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