Linux - 常用网络命令详解netstat，scp
ifconfig
查看生效的ip信息。
[root@local ~]# ifconfig
eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.70.77 netmask 255.255.255.0 broadcast 192.168.70.255
inet6 fe80::20c:29ff:fe6e:b72b prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:6e:b7:2b txqueuelen 1000 (Ethernet)
RX packets 7492 bytes 625846 (611.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3334 bytes 451391 (440.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
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 1020 (1020.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 1020 (1020.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:8c:58:59 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ifconfig 命令看不到网关和DNS。
ifdown,ifup
关闭和启动网卡
[root@local ~]# ifdown lo
[root@local ~]# ifconfig
eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.70.77 netmask 255.255.255.0 broadcast 192.168.70.255
inet6 fe80::20c:29ff:fe6e:b72b prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:6e:b7:2b txqueuelen 1000 (Ethernet)
RX packets 7600 bytes 634935 (620.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3384 bytes 457849 (447.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:8c:58:59 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@local ~]# ifup lo
[root@local ~]# ifconfig
eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.70.77 netmask 255.255.255.0 broadcast 192.168.70.255
inet6 fe80::20c:29ff:fe6e:b72b prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:6e:b7:2b txqueuelen 1000 (Ethernet)
RX packets 7647 bytes 638881 (623.9 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3416 bytes 462387 (451.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
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 1020 (1020.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 1020 (1020.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:8c:58:59 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
netstat
查看网络状态
-t 列出tcp协议端口
-u 列出udp协议端口
-n 不使用域名与服务名，使用IP和端口
-l 列出监听状态的网络服务
-a 列出所有的网络连接
-r 路由信息
-p 列出pid，进程id
[root@local ~]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.70.70 0.0.0.0 UG 0 0 0 eno16777736
192.168.70.0 0.0.0.0 255.255.255.0 U 0 0 0 eno16777736
[root@local ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.70.70 0.0.0.0 UG 100 0 0 eno16777736
192.168.70.0 0.0.0.0 255.255.255.0 U 100 0 0 eno16777736
[root@local ~]# netstat -anp|grep :22
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1185/sshd
tcp 0 52 192.168.70.77:22 192.168.70.33:58840 ESTABLISHED 2436/sshd: root@pts
tcp6 0 0 :::22 :::* LISTEN 1185/sshd
[root@local ~]# netstat -an|grep :22
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 52 192.168.70.77:22 192.168.70.33:58840 ESTABLISHED
tcp6 0 0 :::22 :::* LISTEN
[root@local ~]# netstat -tunl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 ::1:631 :::* LISTEN
tcp6 0 0 ::1:25 :::* LISTEN
udp 0 0 192.168.122.1:53 0.0.0.0:*
udp 0 0 0.0.0.0:67 0.0.0.0:*
udp 0 0 0.0.0.0:5353 0.0.0.0:*
udp 0 0 127.0.0.1:323 0.0.0.0:*
udp 0 0 0.0.0.0:46466 0.0.0.0:*
udp6 0 0 ::1:323 :::*
通过这条指令查看当前计算机开启了哪些服务。
[root@local ~]# netstat -an|grep ESTABLISHED
tcp 0 52 192.168.70.77:22 192.168.70.33:58840 ESTABLISHED
查看正在连接我的计算机。
[root@local ~]# netstat -an|grep ESTABLISHED |wc -l
1
通过两个管道可以统计出数量。
网关不可以乱设置，如果设置多个，或者设置的网关地址不存在，很可能就无法上网了。
nslookup
查看DNS
[root@local ~]# nslookup www.qq.com
Server: 114.114.114.114
Address: 114.114.114.114#53
Non-authoritative answer:
Name: www.qq.com
Address: 180.96.86.192
[root@local ~]# ping www.qq.com
PING www.qq.com (180.96.86.192) 56(84) bytes of data.
64 bytes from 180.96.86.192: icmp_seq=1 ttl=54 time=9.60 ms
64 bytes from 180.96.86.192: icmp_seq=2 ttl=54 time=9.33 ms
ping 命令
查看是否可以通信
[root@local ~]# ping -c 4 www.baidu.com
PING www.a.shifen.com (180.97.33.107) 56(84) bytes of data.
64 bytes from 180.97.33.107: icmp_seq=1 ttl=55 time=9.04 ms
64 bytes from 180.97.33.107: icmp_seq=2 ttl=55 time=10.2 ms
64 bytes from 180.97.33.107: icmp_seq=3 ttl=55 time=9.07 ms
64 bytes from 180.97.33.107: icmp_seq=4 ttl=55 time=14.9 ms
--- www.a.shifen.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 9.042/10.825/14.948/2.429 ms
telnet
远程管理，明文通信。数据包在互联网上不会被加密。建议少用。
traceroute
跟踪查看路由命令
[root@local ~]# traceroute www.baidu.com
traceroute to www.baidu.com (180.97.33.107), 30 hops max, 60 byte packets
1 192.168.70.70 (192.168.70.70) 0.275 ms 0.274 ms 0.223 ms
2 192.168.1.1 (192.168.1.1) 0.555 ms 0.604 ms 0.534 ms
3 100.73.0.1 (100.73.0.1) 3.010 ms 3.316 ms 3.267 ms
4 222.187.235.217 (222.187.235.217) 2.718 ms 2.646 ms 2.585 ms
5 222.187.235.105 (222.187.235.105) 13.826 ms 13.559 ms 13.826 ms
6 202.102.73.122 (202.102.73.122) 16.276 ms 202.102.73.126 (202.102.73.126) 19.856 ms 202.102.69.186 (202.102.69.186) 13.546 ms
7 * * *
8 180.97.32.130 (180.97.32.130) 13.049 ms 180.97.32.26 (180.97.32.26) 139.445 ms 180.97.32.2 (180.97.32.2) 10.769 ms
9 * * *
[root@local ~]# ping www.baidu.com
PING www.a.shifen.com (180.97.33.107) 56(84) bytes of data.
64 bytes from 180.97.33.107: icmp_seq=1 ttl=55 time=9.25 ms
64 bytes from 180.97.33.107: icmp_seq=2 ttl=55 time=9.55 ms
64 bytes from 180.97.33.107: icmp_seq=3 ttl=55 time=9.30 ms
*** 表示ping不同的地址
wget
下载命令
tcpdump
抓包命令
[root@local 桌面]# tcpdump -i eth0 -nnX port 22
-i 指定监听的网卡
-nn 将数据包中的域名与服务转为ip和端口
-X 以16进制和ASCII码显示数据包内容
prot指定监听的端口
scp
远程上传或者下载
[root@localhost ~]# scp -r testscp/ root@192.168.70.77:/root
The authenticity of host '192.168.70.77 (192.168.70.77)' can't be established.
RSA key fingerprint is c1:d1:80:44:94:0b:e2:fb:b4:82:20:79:5f:94:5f:41.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.70.77' (RSA) to the list of known hosts.
root@192.168.70.77's password:
hello 100% 10 0.0KB/s 00:00
这个是上传。
[root@localhost testscp]# scp -r root@192.168.70.77:/root/testscp /root
root@192.168.70.77's password:
hello 100% 10 0.0KB/s 00:00
world 100% 12 0.0KB/s 00:00
这个是下载。
Linux - 常用网络命令详解netstat，scp的更多相关文章
- Linux常用文件管理命令详解
cat cat命令用于连接文件并打印到标准输出设备上. 命令语法:cat [参数] [文件名] 参数说明: 参数 说明 -n 由1开始对所有输出的行数进行编号. -b 由1开始对所有输出的行数进行编号 ...
- Linux主要shell命令详解(上)
[摘自网络] kill -9 -1即实现用kill命令退出系统 Linux主要shell命令详解 [上篇] shell是用户和Linux操作系统之间的接口.Linux中有多种shell,其中缺省使用的 ...
- Linux 系统性能监控命令详解
Linux 系统性能监控命令详解 CPU MEMORY IO NETWORK LINUX进程内存占用查看方法 系统负载过重时往往会引起其它子系统的问题,比如:->大量的读入内存的IO请求(pag ...
- (转)linux mount (挂载命令)详解
linux mount (挂载命令)详解 原文:http://tutu.spaces.eepw.com.cn/articles/article/item/70737 挂接命令(mount) 首先,介绍 ...
- [转帖]Linux的wget命令详解
Linux的wget命令详解 来源不明 找到的也是转帖的 https://www.cnblogs.com/cindy-cindy/p/6847502.html Linux wget是一个下载文件的工具 ...
- Linux下ps命令详解 Linux下ps命令的详细使用方法
http://www.jb51.net/LINUXjishu/56578.html Linux下的ps命令比较常用 Linux下ps命令详解Linux上进程有5种状态:1. 运行(正在运行或在运行队列 ...
- Linux下rar命令详解
Linux下rar命令详解 用法: rar <命令> -<选项1> ….-<选项N> < 操作文档> <文件…> <@文件列表…> ...
- linux下tar命令详解
linux下tar命令详解 tar是Linux环境下最常用的备份工具之一.tar(tap archive)原意为操作磁带文件,但基于Linux的文件操作机制,同样也可适用于普通的磁盘文件.ta ...
- Linux下chkconfig命令详解（转）
Linux下chkconfig命令详解 chkconfig命令主要用来更新(启动或停止)和查询系统服务的运行级信息.谨记chkconfig不是立即自动禁止或激活一个服务,它只是简单的改变了符号连接. ...
随机推荐
- Oracle 数据导入导出(imp/exp)
环境:windows下,oracle11g 1.启动oracle服务 net start OracleDBConsoleorclnet start OracleOraDb11g_home1TNSLis ...
- 12.0&12.1 Xcode开发包
12.1开发包下载链接 12.0开发包下载链接 12.1(16B91)开发包下载链接 Finder打开后,按command+shift+G前往这个地址: /Applications/Xcode.app ...
- ［转］line-height1.5和line-height:150%的区别
line-height1.5和line-height:150%的区别 一.区别 区别体现在子元素继承时,如下: 父元素设置line-height:1.5会直接继承给子元素,子元素根据自己的font ...
- ★Java语法（一）——————————标识符
1.定义:用来标识类名.变量名.方法名.数组名.文件名的有效字符序列: 2.命名规则:a 由字母.数字._(下划线)和$(美元符号)组成 b 数字不能作为第一个字符 c 不能是Java中的关键字和保留 ...
- CDC之fast->slow (1)
Sampling slower signals into faster clock domains causes fewer potential problems than sampling fast ...
- js消息框
<script> function del(obj, id) { layer.confirm('是否要删除信息!', { btn: ['确定', '取消'] }, function (in ...
- icheck使用
1.使用: <link rel="stylesheet" href="css/skins/all.css">或者<link rel=" ...
- 【转】虚拟化（二）：虚拟化及vmware workstation产品使用
vmware workstation的最新版本是10.0.2.相信大家也都使用过,其中的简单的虚拟机的创建,删除等,都很简单,这里就不再详细说明了,下面我将简单介绍下vmware workstatio ...
- localStorage、sessionStorage、cookie
vue下的全局变量和vuex里的state都是临时变量,页面刷新就都没了.
- MATLAB图形界面设计（下）
文章参考Blue Mountain https://www.cnblogs.com/BlueMountain-HaggenDazs/p/4307777.html 一.菜单设计 1.建立菜单项 (1)建 ...