> recent curiosity point: > > michael@post:/etc/bind/zones$ netstat -nt > Active Internet connections (w/o servers) > Proto Recv-Q Send-Q Local Address Foreign Address State > > tcp6 0 0 64.105.252.42:22 64.105.252.44:58721 > ESTABLISHED > tcp6 0 0 64.105.252.42:22 64.105.252.44:58279 > ESTABLISHED > tcp6 0 0 64.105.252.42:22 64.105.252.44:54908 > ESTABLISHED > tcp6 0 0 64.105.252.42:22 64.105.252.44:55373 > ESTABLISHED > > tcp6 and ip4 addresses? That is kinda unexpected. > Any handy explanations?
In order to make application development for IPv6 a little easier, operating systems have implemented various ways to listen on a single socket for both v4 and v6 simultaneously. A good overview is here: http://utcc.utoronto.ca/~cks/space/blog/linux/Ipv6DualBinding So you can actually see a program bind to v6, and if the kernel settings (or manual socket settings) are right, it can accept v4 connections. This probably explains the odd netstat output you're seeing. tim _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
