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RHEL7中常用的網(wǎng)絡(luò)命令
無論你是要下載文件、診斷網(wǎng)絡(luò)問題、管理網(wǎng)絡(luò)接口，還是查看網(wǎng)絡(luò)的統(tǒng)計(jì)數(shù)據(jù)，都有終端命令可以來完成，本篇文章重點(diǎn)為大家講解一下RHEL7中常用的網(wǎng)絡(luò)命令。
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ping檢查網(wǎng)絡(luò)連通性
ping 常常用來測試與目的主機(jī)的連通性。
可以ping通
[root@chao ~]# ping 172.16.1.254
PING 172.16.1.254 (172.16.1.254) 56(84) bytes of data.
64 bytes from 172.16.1.254: icmp_seq=1 ttl=128 time=0.529 ms
64 bytes from 172.16.1.254: icmp_seq=2 ttl=128 time=0.297 ms
64 bytes from 172.16.1.254: icmp_seq=3 ttl=128 time=0.135 ms
64 bytes from 172.16.1.254: icmp_seq=4 ttl=128 time=0.245 ms
64 bytes from 172.16.1.254: icmp_seq=5 ttl=128 time=0.214 ms
^C
--- 172.16.1.254 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4001ms
rtt min/avg/max/mdev = 0.135/0.284/0.529/0.133 ms
[root@chao ~]#
不可以ping通
[root@chao ~]# ping 172.16.1.250
PING 172.16.1.250 (172.16.1.250) 56(84) bytes of data.
From 172.16.1.16 icmp_seq=1 Destination Host Unreachable
From 172.16.1.16 icmp_seq=2 Destination Host Unreachable
From 172.16.1.16 icmp_seq=3 Destination Host Unreachable
From 172.16.1.16 icmp_seq=4 Destination Host Unreachable
From 172.16.1.16 icmp_seq=5 Destination Host Unreachable
From 172.16.1.16 icmp_seq=6 Destination Host Unreachable
From 172.16.1.16 icmp_seq=7 Destination Host Unreachable
From 172.16.1.16 icmp_seq=8 Destination Host Unreachable
^C
--- 172.16.1.250 ping statistics ---
9 packets transmitted, 0 received, +8 errors, 100% packet loss, time 8003ms
pipe 4
配置網(wǎng)絡(luò)
設(shè)置ip
[root@chao ~]# ifconfig ens33:1 172.16.1.114 netmask 255.255.255.0 up
更改MAC地址
[root@chao ~]# ifconfig ens33:1 hw ether 00:0c:29:0b:07:77
修改路由表
顯示路由表
[root@chao ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 172.16.1.254 0.0.0.0 UG 100 0 0 ens33
172.16.1.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
添加路由
[root@chao ~]# route add -net 172.16.2.0 netmask 255.255.255.0 gw 172.16.1.254
刪除路由
[root@chao ~]# route del -net 172.16.2.0 netmask 255.255.255.0
查看網(wǎng)絡(luò)狀態(tài)
查看所有端口
[root@chao ~]# netstat -a|head -4
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:sunrpc 0.0.0.0:* LISTEN
tcp 0 0 chao:domain 0.0.0.0:* LISTEN
查看tcp端口
[root@chao ~]# netstat -at
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:sunrpc 0.0.0.0:* LISTEN
tcp 0 0 chao:domain 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN
tcp 0 0 localhos:x11-ssh-offset 0.0.0.0:* LISTEN
tcp 0 36 chao:ssh 172.16.1.100:57418 ESTABLISHED
tcp6 0 0 [::]:sunrpc [::]:* LISTEN
tcp6 0 0 [::]:ssh [::]:* LISTEN
tcp6 0 0 localhos:x11-ssh-offset [::]:* LISTEN
查看udp端口
[root@chao ~]# netstat -au
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
udp 0 0 chao:domain 0.0.0.0:*
udp 0 0 0.0.0.0:bootps 0.0.0.0:*
udp 0 0 localhost:323 0.0.0.0:*
udp6 0 0 localhost:323 [::]:*
traceroute查看路由信息
[root@chao ~]# traceroute to www.baidu.com (103.235.46.39), 30 hops max, 60 byte packets
1 gateway (172.16.1.254) 0.132 ms 0.062 ms 0.086 ms
2 * * *
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telnet測試遠(yuǎn)程端口
[root@chao ~]# telnet 172.16.1.16 80
wget下載網(wǎng)絡(luò)文件
[root@chao ~]# wget https://mirror.bit.edu.cn/apache/httpd/httpd-2.4.43.tar.gz
網(wǎng)站欄目：RHEL7中常用的網(wǎng)絡(luò)命令
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