Configurando Interface e desabilitando ipv6 no Debian 8 Jessie

Mudar para o endereço IP estático, se você usar o Debian como um servidor.

root@dlp:~# vi /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 # comment out # iface eth0 inet dhcp # add follows iface eth0 inet static address 10.0.0.30 # IP address network 10.0.0.0 # network address netmask 255.255.255.0 # subnet mask broadcast 10.0.0.255 # broadcast address gateway 10.0.0.1 # default gateway dns-nameservers 10.0.0.10 # name server root@dlp:~# systemctl restart ifup@eth0

Desabilitar IPv6 caso necessário.

root@dlp:~#echo "net.ipv6.conf.all.disable_ipv6 = 1" >> /etc/sysctl.conf

root@dlp:~#sysctl -p
net.ipv6.conf.all.disable_ipv6 = 1

root@dlp:~#ifconfig

eth0      Link encap:Ethernet  HWaddr 00:0c:29:9d:56:58
          inet addr:10.0.0.30  Bcast:10.0.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:346 errors:0 dropped:0 overruns:0 frame:0
          TX packets:263 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:33839 (33.0 KiB)  TX bytes:32449 (31.6 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)