По всей видимости, проблемы происходят от DNS, обслуживающие зону name servers не отвечают:
$ nslookup > set querytype=ANY > facebook.com Server: 213.133.100.100 Address: 213.133.100.100#53 Non-authoritative answer: facebook.com mail exchanger = 10 smtpin.vvv.facebook.com. facebook.com nameserver = a.ns.facebook.com. facebook.com nameserver = d.ns.facebook.com. facebook.com nameserver = c.ns.facebook.com. facebook.com nameserver = b.ns.facebook.com. Authoritative answers can be found from: > a.ns.facebook.com Server: 213.133.100.100 Address: 213.133.100.100#53 Non-authoritative answer: Name: a.ns.facebook.com Address: 129.134.30.12 Name: a.ns.facebook.com Address: 2a03:2880:f0fc:c:face:b00c:0:35 Authoritative answers can be found from: > www.facebook.com Server: 213.133.100.100 Address: 213.133.100.100#53 Non-authoritative answer: www.facebook.com canonical name = star-mini.c10r.facebook.com. Authoritative answers can be found from: > star-mini.c10r.facebook.com. ;; Got SERVFAIL reply from 213.133.100.100, trying next server ;; Got SERVFAIL reply from 213.133.99.99, trying next server Server: 213.133.98.98 Address: 213.133.98.98#53 ** server can't find star-mini.c10r.facebook.com: SERVFAIL > lserver 129.134.30.12 Default server: 129.134.30.12 Address: 129.134.30.12#53 > facebook.com ;; Connection to 129.134.30.12#53(129.134.30.12) for facebook.com failed: timed out. ;; Connection to 129.134.30.12#53(129.134.30.12) for facebook.com failed: timed out. ;; connection timed out; no servers could be reached ;; Connection to 129.134.30.12#53(129.134.30.12) for facebook.com failed: timed out.
