linux查看本机ip的命令是“ifconfig”命令和“ip address”命令；linux查看端口号的命令是“lsof -i:port”命令和“netstat -aptn”命令。
查看本机ip：
1）ifconfig命令
输出如下：
[root@topgun /home/cly]
# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.128.132 netmask 255.255.255.0 broadcast 192.168.128.255
inet6 fe80::20c:29ff:fe45:63ba prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:45:63:ba txqueuelen 1000 (Ethernet)
RX packets 1936 bytes 2440516 (2.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1207 bytes 94802 (92.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 19 base 0x2024
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 16436
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 12 bytes 744 (744.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 744 (744.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0该命令属于包：
[root@topgun /home/cly] # pacman -Qo ifconfig /sbin/ifconfig 属于 net-tools 1.60.20120804git-2
2）ip address命令
输出如下：
[root@topgun /home/cly]
# ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 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
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:45:63:ba brd ff:ff:ff:ff:ff:ff
inet 192.168.128.132/24 brd 192.168.128.255 scope global eth0
inet6 fe80::20c:29ff:fe45:63ba/64 scope link
valid_lft forever preferred_lft forever该命令属于包：
[root@topgun /home/cly] # pacman -Qo ip /usr/sbin/ip 属于 iproute2 3.5.1-1
Linux查看本机端口
查看指定的端口
# lsof -i:port
查看所有端口
# netstat -aptn
安装telnet
#yum install -y telnet.x86_64
#telnet ip 端口
推荐教程： 《linux教程》
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