До разрыва:
::~::>> ip a ; ip r ; ip -s l ; sudo iptables-save ; nslookup ya.ru ; nslookup ya.ru 8.8.8.8 ; tracepath 8.8.8.8
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 1c:75:08:2f:e7:20 brd ff:ff:ff:ff:ff:ff
inet 192.168.38.181/24 brd 192.168.38.255 scope global eth0
inet6 fe80::1e75:8ff:fe2f:e720/64 scope link
valid_lft forever preferred_lft forever
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
link/ether 78:e4:00:e3:c3:8b brd ff:ff:ff:ff:ff:ff
default via 192.168.38.1 dev eth0 proto static
169.254.0.0/16 dev eth0 scope link metric 1000
192.168.38.0/24 dev eth0 proto kernel scope link src 192.168.38.181 metric 1
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
RX: bytes packets errors dropped overrun mcast
344123 4763 0 0 0 0
TX: bytes packets errors dropped carrier collsns
344123 4763 0 0 0 0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 1c:75:08:2f:e7:20 brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
31226493 70563 0 0 6366 40
TX: bytes packets errors dropped carrier collsns
6327851 54075 0 0 1 0
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
link/ether 78:e4:00:e3:c3:8b brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
[sudo] password for speranza:
Server: 192.168.36.14
Address: 192.168.36.14#53
Non-authoritative answer:
Name: ya.ru
Address: 87.250.250.203
Name: ya.ru
Address: 87.250.251.3
Name: ya.ru
Address: 93.158.134.3
Name: ya.ru
Address: 93.158.134.203
Name: ya.ru
Address: 213.180.193.3
Name: ya.ru
Address: 213.180.204.3
Name: ya.ru
Address: 77.88.21.3
Name: ya.ru
Address: 87.250.250.3
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: ya.ru
Address: 77.88.21.3
Name: ya.ru
Address: 87.250.250.3
Name: ya.ru
Address: 87.250.250.203
Name: ya.ru
Address: 87.250.251.3
Name: ya.ru
Address: 93.158.134.3
Name: ya.ru
Address: 93.158.134.203
Name: ya.ru
Address: 213.180.193.3
Name: ya.ru
Address: 213.180.204.3
1: acer.msk.csat.ru 0.317ms pmtu 1500
1: 192.168.38.1 1.101ms
1: 192.168.38.1 1.078ms
2: 192.168.30.253 3.486ms
3: 441324-cssat.moscow.access.comstar.ru 3.776ms
4: a197-cr01-te3-4-2001.msk.stream-internet.net 4.324ms asymm 5
5: a197-crs-1-be6.msk.stream-internet.net 5.846ms asymm 11
6: ss-crs-1-be5.msk.stream-internet.net 6.707ms asymm 10
7: ss-cr01-vlan-3821.msk.stream-internet.net 4.118ms
8: ss-9-te-0-0-0-3821.msk.stream-internet.net 3.885ms
9: ss-cr01-vlan-3820.msk.stream-internet.net 5.466ms
10: ss-crs-1-be4.msk.stream-internet.net 7.158ms asymm 12
11: m9-cr01-po3.msk.stream-internet.net 30.987ms
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
25: no reply
26: no reply
27: no reply
28: no reply
29: no reply
30: no reply
31: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500
После разрыва:
Блин, не рвётся сейчас, как назло, завтра напишу.
UPD(на следующий день):
Сегодня весь день не рвалось соединение, видимо проблема у админов была. Закрыто.