Linux network namespace
2021/8/28 7:37:52
本文主要是介绍Linux network namespace,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
create & delete & list & exec network namespace
# ip netns add test1 # ip netns list test1 # ip netns delete test1 # ip netns exec test1 ip a 1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 # ip netns exec test1 ip link 1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 # ip netns exec test1 ip link set dev lo up # ip netns exec test1 ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 # mode由DOWN变为UNKNOWN
add interface to a network namespace
# ip link add veth-a type veth peer name veth-b # ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 52:54:00:25:66:c8 brd ff:ff:ff:ff:ff:ff 3: veth-b@veth-a: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether c2:32:fc:89:5c:61 brd ff:ff:ff:ff:ff:ff 4: veth-a@veth-b: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether da:8f:39:f7:09:1f brd ff:ff:ff:ff:ff:ff
assign ip address to veth interface
# ip addr add 192.168.8.155/24 dev veth-a # ip link set veth-a up # ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 52:54:00:25:66:c8 brd ff:ff:ff:ff:ff:ff 3: veth-b@veth-a: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether c2:32:fc:89:5c:61 brd ff:ff:ff:ff:ff:ff 4: veth-a@veth-b: <NO-CARRIER,BROADCAST,MULTICAST,UP,M-DOWN> mtu 1500 qdisc noqueue state LOWERLAYERDOWN mode DEFAULT group default qlen 1000 link/ether da:8f:39:f7:09:1f brd ff:ff:ff:ff:ff:ff # mode LOWERLAYERDOWN # ip addr add 192.168.8.156/24 dev veth-b # ip link set veth-b up # ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 52:54:00:25:66:c8 brd ff:ff:ff:ff:ff:ff 3: veth-b@veth-a: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether c2:32:fc:89:5c:61 brd ff:ff:ff:ff:ff:ff 4: veth-a@veth-b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether da:8f:39:f7:09:1f brd ff:ff:ff:ff:ff:ff # mode UP
这篇关于Linux network namespace的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!
- 2024-03-30[译]漫画SELinux概念
- 2024-03-29linux 移动文件
- 2024-03-28linux .so file
- 2024-03-28Linux 磁盘管理
- 2024-03-28Linux学习笔记(十三)磁盘管理(一):磁盘分区
- 2024-03-26linux 创建 文件
- 2024-03-25使用SecureCRT对Linux vim进行颜色设置
- 2024-03-202019-2020-12 20199317 《Linux内核原理与分析》 第十二周作业
- 2024-03-20Linux运维的第二周总结
- 2024-03-13how to count number of directories in linux