Linux

[root@hadoop058 ~]# Mii-tooleth0:negotiated 100basetx-fd, link OK 100M Linux to see the network card operating rate Ethtool is the command used to query and set the network card parameters. Profile:Ethtool ethx//Query Ethx the basic settings of the

When you write a socket program in a Linux kernel module, when you bind a port with bind, sending the data can be successful. However, the port can not be released in time, the next time the module is loaded, the address will appear to occupy the

We all know that ifconfig-a can list all the network cards, but how to interpret the gigabit NIC or the hundred gigabit NIC. 1. The judge is the gigabit Nic or the hundred gigabit NIC Ethtool ETHX View the rate of support The actual network card

This file is a configuration file for DNS domain name resolution, which is simple in format, preceded by a keyword, followed by configuration parameters. The key words of resolv.conf are mainly four, respectively: NameServer #定义DNS服务器的IP地址 Domain #

/etc/resolv.conf was emptied because there was no DNS server information in the/etc/sysconfig/network-scripts/ifcfg-eth0, so the system automatically uses/etc/sysconfig/after reboot Network-scripts/ifcfg-eth0 the settings in

Cache segment--neilwong (neilwong@hotmail.com) in the Linux kernel Original address: http://blogold.chinaunix.net/u2/85263/showart_1743693.html When I recently transplanted the LEON3 kernel, I learned some simple knowledge, especially for everyone

We all know that there are three kinds of Linux system, bridging, nat,hostonly three modes, today we will introduce the Hostonly connection mode: Step one: Start Linux, enter Ifconfig, and view the IP address at this time: Of course you do nothing,

Device-driven interrupt event processing as shown in the following figure, he differs from the common driver in that there is a data buffer, the Read/write method provided by the driver does not directly complete the hardware data operation, the

Back_day= ' date-d ' 1 day ago ' +%y-%m-%d 'Finance_linux_log_user=/home/admin/output/logs/userTarget_server= "Crmfinance1 crmfinance2

1. See if you are connected to the storage View the/proc/scsi/scsi file, which lists the devices that are connected to through SCSI or FC. Fdisk-l can view the list of hard disk devices In the/dev directory, you can see a lot of device files,

In the Linux distribution, different versions of the encryption algorithm used are different, the algorithm generated different passwords are different, we can autoconfig--test This command to view the default type of password. [Root@server25 vhost]#

Accidentally put Linux permissions after 777 of the remediation scheme Hand cheap put/var 777, really careless, restore a day, estimated or have a pit, so use it first. Restore Permissions Script #!/bin/sh Foreachd () {for file in $1/* does # If it

Maybe everyone, like me, have encountered problems like me, we added a new user under Linux, and when we switched to this user, we found that we did not display the new user and hostname we created (not the "user @ Host name"), but just a $ symbol.

-----------------------------------------------------------#!/bin/bash Set-e Command 1Command 2... Exit 0---------------------------------------------------------- Every script you write should include SET-E in the top. This tells Bash is it should

have been playing Linux kernel and file system porting for nearly a week, using the following version: Bootloader:u-boot-2010.06.tgz Kernel:linux-3.0.y.tgz Busybox:busybox-1.16.1.tgz After the collection of the corresponding introduction documents

In a Linux system, a network adapter can set multiple IP. Cd/etc/sysconfig/network-scripts CP Ifcfg-ens33 ifcfg-ens33\:1 The backslash (\) is added because you want to escape it, otherwise it is not recognized on the Linux command line, and then

The usage of the Linux nohup command. When applying unix/linux, we generally want a program to run in the background, so we will often use & at the end of the program to run the program automatically. For example we want to run MySQL in the

1, to the http://www.kernel.org/download source package 2, decompression compression package#tar-ZXVF linux-xx.xx.xx.tar.gz (Note: xx.xx.xx. Represents the kernel version number) 3, 3, delete the previously possible failure of the compilation

[Content Summary] This paper introduces the three components of Input-subsystem, analyzes the main structures and functions, and how they relate to each other. [Overview] The kernel's input subsystem is a driver that unifies disparate input devices

Reference documentation 1:http://jingyan.baidu.com/article/7908e85c725159af481ad2f7.html Reference documentation 2:http://blog.csdn.net/wang1144/article/details/7801149 Reference in document 1 provides a way to view system information in 4, but