Linux

Description Cobbler Server System: CentOS 5.10 64-bit IP Address: 192.168.21.128 You need to install a deployed Linux system: Eth0 (first network card, for extranet) IP address segment: 192.168.21.160-192.168.21.2

Hard LinksThe new file is an alias for a file that already exists, and the new file is still available when the original file is deleted.Hard Link Features:1, with the same I node and the same storage block fast, can be seen as the same file2, can

DHCP Introduction function Introduction DHCP is a protocol based on UDP that works at the application level and is used to automatically assign IP addresses.Application Example: There are 10 people in an office, each day to work with their own

One, the source code compiles installs the mysql5.5.2 Operating system: Redhat Enterprise Linux 6.2 1. Create users, directories, and Modify permissions # mkdir-p/usr/local/mysql/data# Groupadd MySQL# useradd-g MySQL MySQL# Chown-r

Git svn command All of the Subversion bridge commands in Git are based on git svn. All commands start with it. The number of related commands, this article but more introduction git svn command use, only a simple description of the most commonly

Httping is an HTTP request client that simulates ping output. The Fastopen request is supported from 1.5 and the current version is 2.3.4. I compiled the Nginx 1.5.13,yum on Fedora 20 (kernel version 3.13) and installed httping 2.3.3 version. Open

1, download files from the serverSCP username@servername:/path/filename/var/www/local_dir (local directory) For example, the SCP root@192.168.0.101:/var/www/test.txt downloads/var/www/test.txt files on 192.168.0.101 to/var/www/local_dir (local

Below, the blacksmith uses a pure version of the system to give everyone a simple upgrade tutorial. Because it is pure version, so some gcc, wget have to be downloaded again. This also gives the novice a better practice opportunity, Daniel do not

Using the EXISTS function to determine Create a new PHP file, the code below, uploaded to the site root directory access, naturally know whether to support the mail () function! The code is as follows Copy Code if

Linux Delete Folder commandLinux Delete directory is very simple, many people are still accustomed to using rmdir, but once the directory is not empty, into deep distress, now use the RM-RF command.Direct RM is OK, but add two parameters-rf namely:

The Chattr command is powerful, some of which are supported by the Linux kernel version, and many of the features are not implemented if the Linux kernel version is below 2.2. Also-d to check for errors in the compressed file, requires more than 2.5.

1, the outline of the planning task; The task of planning is to perform the work that has been planned at the agreed time, which is the superficial meaning. In Linux, we often use the Crond server to do this work. A cron server can perform a

Background: Multiple items in the code of the log printing level unified replacement, if the file size, the number of many, to do it obviously powerless, through the script, this replacement sed the most suitable.Title:I:I want to put: Log_threshold

Method One, the most commonly used binding gateway The general server gateway is not changed, and VPS also apply.First, view the current gateway [Root@local@xiaohuai ~]# Arp-a? (218.65.22.122) at 80:fb:06:f2:4a:f4 [ether] on eth0 SSH executes the

SendMail component not installed or started Solutions I am a novice, the command is not familiar, so write very detailed, the veteran don't spray OH 1. Reinstall the SendMail component, I use the CentOS, install with the following command

First, the preface Recently learning the Linux kernel, read the chapter on memory addressing in the deep understanding of the Linux kernel. Originally thought oneself to the subsection paging mechanism already understood, the result discovers

Gcc-c ++ and rpmbuild required for installation and compilation[Root @ LookBack-Node ~] # Yum install gcc-c ++ rpm-buildAdd common users[Root @ LookBack-Node ~] # Name = rpmbuild[Root @ LookBack-Node ~] # Useradd $ nameSet the rpmbuild root

The firewall rule file is in:/Etc/sysconfig/iptablesOpen the configuration file through viAdd two lines to the table:-A input-m state-state NEW-m tcp-p tcp-dport 80-j ACCEPT-A input-m state-state NEW-m tcp-p tcp-dport 3306-j ACCEPTThe result is as