删除一个IP

 

 

删除下面的172.16.15.102 IP
eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq state UP qlen 1000
link/ether fa:16:3e:c3:af:ac brd ff:ff:ff:ff:ff:ff
inet 172.16.114.96/23 brd 172.16.115.255 scope global eth0
valid_lft forever preferred_lft forever
inet 172.16.15.102/32 scope global eth0
valid_lft forever preferred_lft forever

 

要删除eth0接口上的172.16.15.102/32这个IP地址，你可以使用ip命令来执行此操作。这里是如何做到这一点的步骤：

1. 打开终端。

2. 使用ip addr del命令删除指定的IP地址。因为172.16.15.102/32是一个点分十进制的表示，并且子网掩码是/32（意味着这是一个单独的主机地址），所以你不需要担心子网掩码部分的冲突。只需指定IP地址和接口名称即可。

   bash复制代码

   sudo ip addr del 172.16.15.102/32 dev eth0

   或者，由于这是一个单独的主机地址（/32），你也可以简单地写成：

   bash复制代码

   sudo ip addr del 172.16.15.102 dev eth0

3. 使用ip addr show eth0命令来验证IP地址是否已被成功删除：

   bash复制代码

   ip addr show eth0

   确保输出中不再包含172.16.15.102这个IP地址。

请注意，执行这些命令可能需要适当的权限，因此你可能需要使用sudo来确保有足够的权限来修改网络接口配置。此外，如果你正在运行的网络服务或应用程序依赖于这个被删除的IP地址，那么删除它可能会导致服务中断或应用程序无法正常工作。在删除之前，请确保你了解这个IP地址的用途，并已经做好了相应的准备工作。

 

 

[root@vm-kong004.xiaoma.com ares]# systemctl status keepalived
● keepalived.service - LVS and VRRP High Availability Monitor
Loaded: loaded (/usr/lib/systemd/system/keepalived.service; enabled; vendor preset: disabled)
Active: inactive (dead) since Fri 2024-05-24 13:50:56 CST; 4min 41s ago
Process: 2494 ExecStart=/usr/sbin/keepalived $KEEPALIVED_OPTIONS (code=exited, status=0/SUCCESS)
Main PID: 2495 (code=exited, status=0/SUCCESS)

May 24 13:50:51 vm-kong004.xiaoma.com Keepalived_healthcheckers[2496]: Initializing ipvs
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived[2495]: Starting VRRP child process, pid=2497
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived_healthcheckers[2496]: Opening file '/etc/keepalived/keepalived.conf'.
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived_healthcheckers[2496]: Opening file './conf.d/keepalived.conf'.
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived_vrrp[2497]: Registering Kernel netlink reflector
May 24 13:50:51 vm-kong004.xiaoma.com systemd[1]: Started LVS and VRRP High Availability Monitor.
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived_vrrp[2497]: Registering Kernel netlink command channel
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived_vrrp[2497]: Registering gratuitous ARP shared channel
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived[2495]: Keepalived_vrrp exited with permanent error CONFIG. Terminating
May 24 13:50:51 vm-kong004.xiaoma.com Keepalived[2495]: Stopping
[root@vm-kong004.xiaoma.com ares]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
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
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq state UP qlen 1000
link/ether fa:16:3e:c3:af:ac brd ff:ff:ff:ff:ff:ff
inet 172.16.114.96/23 brd 172.16.115.255 scope global eth0
valid_lft forever preferred_lft forever
inet 172.16.15.102/32 scope global eth0
valid_lft forever preferred_lft forever
[root@vm-kong004.xiaoma.com ares]#
[root@vm-kong004.xiaoma.com ares]# ip addr del 172.16.15.102 dev eth0
Warning: Executing wildcard deletion to stay compatible with old scripts.
Explicitly specify the prefix length (172.16.15.102/32) to avoid this warning.
This special behaviour is likely to disappear in further releases,
fix your scripts!
[root@vm-kong004.xiaoma.com ares]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
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
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq state UP qlen 1000
link/ether fa:16:3e:c3:af:ac brd ff:ff:ff:ff:ff:ff
inet 172.16.114.96/23 brd 172.16.115.255 scope global eth0
valid_lft forever preferred_lft forever
[root@vm-kong004.xiaoma.com ares]#