replace old dns-server 2001:1b60:3:34:7711:1:0:1 with new one...
replace old dns-server 2001:1b60:3:34:7711:1:0:1 with new one 2001:1b60:3:34:7711:1:0:1 in site.conf
replace old dns-server 2001:1b60:3:34:7711:1:0:1 with new one 2001:1b60:3:34:7711:1:0:1 in site.conf