在 CentOS 7 中所不见的命令 ： ifconfig、route、netstat、traceroute

从centos6转移到centos7后，发现几个常用的命令找不到，此篇记录在CentOS 6 中所常用的几个工具将被淘汰，并且替代的工具

ifconfig 替换为ip addr

#同ifconfig
$ ip addr
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
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:22:4d:80:7f:6a brd ff:ff:ff:ff:ff:ff
inet 192.168.10.10/24 brd 222.186.42.255 scope global enp1s0
valid_lft forever preferred_lft forever
inet6 fe80::222:4dff:fe80:7f6a/64 scope link
valid_lft forever preferred_lft forever

#查看介面传输状态-s 详细

$ ip -s link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:22:4d:80:7f:6a brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
26232302 55435 0 0 0 0
TX: bytes packets errors dropped carrier collsns
1338484 14020 0 0 0 0

netstat 替换为ss

#同netstat -tunpl
$ ss -tunpl
#检视tcp连线
$ ss -t
#检视udp
$ ss -u

traceroute/traceroute6 替换为tracepath

$ tracepath 8.8.8.8

route 替换为ip route

$ ip route
192.168.10.0/24 dev eth0 proto kernel scope link src 192.168.121.10
169.254.0.0/16 dev eth0 scope link metric 1003
default via 192.168.10.254 dev eth0

arp 替换为ip neighbor

$ ip neighbor
192.168.10.108 dev eth0 lladdr e0:ac:cb:66:2a:3c STALE
192.168.10.254 dev eth0 lladdr 10:7b:ef:47:ce:53 REACHABLE

在CentOS 7 被淘汰的工具只是不在预设安装所包含的，所以是可以利用yum 把他安装回来

Note：在yum 中不知道套件的名称，可以用 provides 和list 直接搜寻package 里面的工具

$ yum provides */ifconfig
net-tools-1.60-110.el6_2.x86_64 : Basic networking tools
Repo : base
Matched from:
Filename : /sbin/ifconfig