С сервера:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/void
inet 127.0.0.2/32 scope host venet0
inet 51.255.96.56/32 brd 51.255.96.56 scope global venet0:0
3: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 100
link/none
inet 10.8.0.1/24 brd 10.8.0.255 scope global tun0
10.8.0.0/24 dev tun0 proto kernel scope link src 10.8.0.1
default dev venet0 scope link
root@73734:/home/fox# ip a; ip r
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/void
inet 127.0.0.2/32 scope host venet0
inet 51.255.96.56/32 brd 51.255.96.56 scope global venet0:0
3: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 100
link/none
inet 10.8.0.1/24 brd 10.8.0.255 scope global tun0
10.8.0.0/24 dev tun0 proto kernel scope link src 10.8.0.1
default dev venet0 scope link
bash: nslookup: command not found
bash: nslookup: command not found
net.ipv4.ip_forward = 1
# Generated by iptables-save v1.4.21 on Wed Sep 13 13:21:04 2017
*raw
:PREROUTING ACCEPT [211710:161900615]
:OUTPUT ACCEPT [147855:7713315]
COMMIT
# Completed on Wed Sep 13 13:21:04 2017
# Generated by iptables-save v1.4.21 on Wed Sep 13 13:21:04 2017
*mangle
:PREROUTING ACCEPT [211710:161900615]
:INPUT ACCEPT [211207:161868828]
:FORWARD ACCEPT [503:31787]
:OUTPUT ACCEPT [147855:7713315]
:POSTROUTING ACCEPT [148358:7745102]
COMMIT
# Completed on Wed Sep 13 13:21:04 2017
# Generated by iptables-save v1.4.21 on Wed Sep 13 13:21:04 2017
*filter
:INPUT ACCEPT [211207:161868828]
:FORWARD ACCEPT [503:31787]
:OUTPUT ACCEPT [147855:7713315]
COMMIT
# Completed on Wed Sep 13 13:21:04 2017
С клиента:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether 10:bf:48:2b:39:24 brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether e0:b9:a5:f5:08:69 brd ff:ff:ff:ff:ff:ff
4: wlx00c0ca924c4f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:c0:ca:92:4c:4f brd ff:ff:ff:ff:ff:ff
inet 192.168.2.5/24 brd 192.168.2.255 scope global wlx00c0ca924c4f
valid_lft forever preferred_lft forever
5: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
link/none
inet 10.211.1.9 peer 10.211.1.10/32 scope global tun0
valid_lft forever preferred_lft forever
inet6 fe80::85e7:7859:9440:6ba5/64 scope link flags 800
valid_lft forever preferred_lft forever
0.0.0.0/1 via 10.211.1.10 dev tun0
default via 192.168.2.1 dev wlx00c0ca924c4f
10.211.1.10 dev tun0 proto kernel scope link src 10.211.1.9
128.0.0.0/1 via 10.211.1.10 dev tun0
169.254.0.0/16 dev tun0 scope link metric 1000
192.168.2.0/24 dev wlx00c0ca924c4f proto kernel scope link src 192.168.2.5
211.243.203.173 via 192.168.2.1 dev wlx00c0ca924c4f
Server: 192.168.2.1
Address: 192.168.2.1#53
Non-authoritative answer:
Name: ya.ru
Address: 87.250.250.242
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: ya.ru
Address: 87.250.250.242
P.S Там спросить не могу, т.к статья сохранена на компьютере.