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linux_wiki:static_ip [2016/02/11 21:51] billdozor [Redhat/CentOS Systems] |
linux_wiki:static_ip [2019/05/25 23:50] (current) |
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| Line 6: | Line 6: | ||
| **Checklist** | **Checklist** | ||
| - | * Distros: Debian or Redhat based. | + | * Distro(s): Debian or Enterprise Linux |
| ---- | ---- | ||
| Line 15: | Line 15: | ||
| if possible, bring interface down first: ifdown eth0. | if possible, bring interface down first: ifdown eth0. | ||
| - | 1) Edit / | + | * Edit / |
| - | <code bash> | + | |
| - | nano / | + | |
| - | </ | + | |
| - | 2) DHCP Setup Example (Default) | + | * DHCP Setup Example (Default)< |
| - | <code bash> | + | iface eth0 inet dhcp</ |
| - | auto eth0 | + | |
| - | iface eth0 inet dhcp | + | |
| - | </ | + | |
| - | 3) Static Setup Example | + | * Static Setup Example< |
| - | <code bash> | + | |
| - | auto eth0 | + | |
| iface eth0 inet static | iface eth0 inet static | ||
| address 192.168.0.100 | address 192.168.0.100 | ||
| netmask 255.255.255.0 | netmask 255.255.255.0 | ||
| gateway 192.168.0.254 | gateway 192.168.0.254 | ||
| - | dns-nameservers 8.8.8.8 8.8.4.4 | + | dns-nameservers 8.8.8.8 8.8.4.4</ |
| - | </ | + | |
| - | 4) Bring the interface up (if brought down at the start) | + | * Bring the interface up (if brought down at the start)< |
| - | <code bash> | + | |
| - | ifup eth0 | + | |
| - | </ | + | |
| - | 5) Otherwise, restart to fix nameserver conflicts between dhclient and static. | + | * Otherwise, restart to fix nameserver conflicts between dhclient and static.< |
| - | <code bash> | + | |
| - | shutdown -r now | + | |
| - | </ | + | |
| ---- | ---- | ||
| Line 50: | Line 35: | ||
| ==== Redhat/ | ==== Redhat/ | ||
| - | 1) Edit / | + | Classic and NetworkManager methods of setting IP addresses for EL distros. |
| - | <code bash> | + | |
| - | vi / | + | |
| - | </ | + | |
| - | 2) DHCP Setup Example (Default) | + | === Classic (network) Method === |
| - | <code bash> | + | |
| - | DEVICE=eth0 | + | Using config files and the network service. |
| + | |||
| + | * Edit / | ||
| + | |||
| + | * DHCP Setup Example (Default)< | ||
| ONBOOT=no (change to yes to have DHCP start automatically) | ONBOOT=no (change to yes to have DHCP start automatically) | ||
| NM_CONTROLLED=yes | NM_CONTROLLED=yes | ||
| - | BOOTPROTO=dhcp | + | BOOTPROTO=dhcp</ |
| - | </ | + | |
| - | 3) Static Setup Example | + | * Static Setup Example< |
| - | <code bash> | + | |
| - | DEVICE=eth0 | + | |
| ONBOOT=yes | ONBOOT=yes | ||
| NM_CONTROLLED=no | NM_CONTROLLED=no | ||
| Line 71: | Line 54: | ||
| IPADDR=192.168.0.101 | IPADDR=192.168.0.101 | ||
| NETMASK=255.255.255.0 | NETMASK=255.255.255.0 | ||
| - | GATEWAY=192.168.0.254 | + | GATEWAY=192.168.0.254</ |
| - | </ | + | |
| - | 4) Edit / | + | * Edit / |
| - | <code bash> | + | |
| - | vi / | + | |
| nameserver 8.8.8.8 | nameserver 8.8.8.8 | ||
| - | nameserver 8.8.4.4 | + | nameserver 8.8.4.4</ |
| - | </ | + | |
| + | * Restart network service< | ||
| + | |||
| + | === Network Manager === | ||
| + | |||
| + | Using the NetworkManager service. | ||
| + | |||
| + | \\ | ||
| + | Static IP/ | ||
| + | * Set a static IP on an existing interface (eth0)< | ||
| + | * Apply settings< | ||
| + | |||
| + | \\ | ||
| + | Static DNS | ||
| + | * Set a static DNS entry< | ||
| + | * Apply changes< | ||
| + | |||
| + | ---- | ||
| - | 5) Restart network service | ||
| - | <code bash> | ||
| - | / | ||
| - | </ | ||