1. Первый запрос пуст.
2. lspci -vnnk | grep -i eth
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 11)
3.
sudo cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
4.
sudo cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
5.
ifconfig -a
eth0 Link encap:Ethernet HWaddr d0:50:99:13:ec:cf
inet addr:192.168.159.202 Bcast:192.168.159.255 Mask:255.255.255.0
inet6 addr: fe80::d250:99ff:fe13:eccf/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:97034368 errors:0 dropped:0 overruns:0 frame:0
TX packets:137897506 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9273965077 (9.2 GB) TX bytes:140457794168 (140.4 GB)
6.
dig @8.8.8.8 ya.ru
; <<>> DiG 9.9.5-3ubuntu0.1-Ubuntu <<>> @8.8.8.8 ya.ru
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64579
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;ya.ru. IN A
;; ANSWER SECTION:
ya.ru. 4688 IN A 213.180.193.3
ya.ru. 4688 IN A 213.180.204.3
ya.ru. 4688 IN A 93.158.134.3
;; Query time: 55 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Dec 24 13:23:58 NOVT 2014
;; MSG SIZE rcvd: 82
7.
dig ya.ru
; <<>> DiG 9.9.5-3ubuntu0.1-Ubuntu <<>> ya.ru
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14854
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 2, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;ya.ru. IN A
;; ANSWER SECTION:
ya.ru. 6121 IN A 93.158.134.3
ya.ru. 6121 IN A 213.180.193.3
ya.ru. 6121 IN A 213.180.204.3
;; AUTHORITY SECTION:
ya.ru. 6121 IN NS ns2.yandex.ru.
ya.ru. 6121 IN NS ns1.yandex.ru.
;; Query time: 508 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Wed Dec 24 13:25:04 NOVT 2014
;; MSG SIZE rcvd: 125