5.2.1 ping 这个ping是很重要的命令,ping主要通过ICMP数据包来进行整个网络的状况报告,当然,最重要的就是ICMP type 0、8这两个类型,分别是要求回报与主动回报网络状态是否存在的特性。要特别注意的是,ping需要通过IP数据包来传送ICMP数据包,而IP数据包里有个相当重要的TTL(Time To Live)属性,这是一个很重要的路...
Using tcptrack to Test Network Activity TCPtrack shows the connection status for a network interface. When your machine’s network is active, run this tool to view andmonitor bandwidthspeed and usage. To install tcptrack on Linux Ubuntu, enter: sudo apt install tcptrack To view network activit...
(struct sockaddr*)&addr,sizeof(addr));56if (rc !=0) {57if (errno ==EINPROGRESS) {58 printf("Doing connection.\n");59/*正在处理连接*/60 FD_ZERO(&fdr);61 FD_ZERO(&fdw);62 FD_SET(fd, &fdr);63 FD
1 arg remaining, starting with 'network.dmp' Ostermann's tcptrace -- version 6.6.7 -- Thu Nov 4, 2004 511677 packets seen, 511487 TCP packets traced elapsed wallclock time: 0:00:00.510291, 1002714 pkts/sec analyzed trace file elapsed time: 0:02:35.836372 TCP connection info: 1: zaber:...
Netstat(Network Statistic) command display connection info, routing table information etc. To displays routing table information use option as-r. # netstat -rKernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.50.0 * 255.255.255.0 U 0 0 0 eth0 link-local * ...
网络地址端口转换 NAPT(Network Address and Port Translation),即把内网 IP 映射到公网 IP 的不同端口上,让多个内网 IP 可以共享同一个公网 IP 地址。 iptables: Linux 内核提供的 Netfilter 框架,允许对网络数据包进行修改(比如 NAT)和过滤(比如防火墙)。在这个基础上,iptables、ip6tables、ebtables 等工具,又提...
Check Network Connection Status In the above output, you can see three network interfaces: lo (loopback), enp7s0 (Ethernet), and virbr0 (virtual network). Each interface has information about its index (IDX), name (LINK), type, operational status, and setup status. ...
Test the connection both ways Try pinging your server over the internet. Open a terminal or command prompt on your own computer and try pinging your server’s public IP, which you can find in the UpCloud control panel under theNetwork section. ...
# 查看connection详细信息 nmcli c show ethX # 重载所有ifcfg或route到connection(不会立即生效) nmcli c reload # 重载指定ifcfg或route到connection(不会立即生效) nmcli c load/etc/sysconfig/network-scripts/ifcfg-ethX nmcli c load/etc/sysconfig/network-scripts/route-ethX ...
二、通过networkmanger实现 绑定模式 balanceactive-backup--不依赖交换机balance-xorbroadcast等 三、网卡绑定 1、创建两个网卡 2、创建虚拟网卡同时设置连接名称 nmcli conaddtypebondcon-namebond_testifnamebond_testmode active-backup#设置了一个名为bond_test的连接、关联的虚拟网卡为bond_test、使用的模式为activ...