Linux

CSF is based on iptables and does not support Snat, and other mappings are supported. The latest version does not know that there is no solution to this problem. Configuration file/etc/csf.allow 1,dnat Usage: ipx|*| IPY|*|TCP/UDP//ipx Mapping

The following error occurred while booting the system. This means identifying the problem when confirming the file system, and here's how to fix the file system error. Checking filesystems /12:unexpected inconsistency; RUN fsck manually.(i.e.,

A boot package is then downloaded to native memory using the TFTP (Trivial File Transfer Protocol) or MTFTP (multicast trivial file transfer) protocol. By this boot package completes the terminal (customer?) Basic software settings to boot the

Install PUREFTPD After entering the LNMP unpacked directory, execute:./pureftpd.sh will display the following figure: Press the prompt to enter the current MySQL root password, enter the completion, carriage return confirmation,

The current process and other status of the top display system is a dynamic display process that refreshes the current state with user keystrokes. If the command is executed at the foreground, it will monopolize the foreground until the user

After several versions of evolution, one-click Test Script bench.sh has been applied almost entirely to network (downlink) and IO testing for various Linux distributions.And the test results are shown in a more beautiful way. Summarize the

Today introduced a Linux under the monitoring of real-time broadband use of software iftop,iftop can view the flow of dynamic, to help you solve, find the network slow problem.Of course, check the network card traffic tools and Iptraf, nethogs and

Linux glibc Vulnerability Background The gethostbyname function of the Linux GNU glibc Standard library has burst a buffer overflow vulnerability with a vulnerability number of cve-2015-0235. Hackers can implement remote code execution through

LVM logical Volumn Manager Logical Volume management can increase or decrease the size of the volume space freely PV Physical volumn (physical volume) The actual partitioning device is zoned PV, PV is the LVM physical mark VG Volumn Group (volume

/> Cat > test25.sh#!/bin/sh#1. Test the validity of the number of script parameters.If [$#-ne 2]; Thenecho "Usage: $ ftp://... username" >&2Exit 1Fi#2. Gets the top six characters of the first parameter and, if not "ftp://", is considered an illegal

After the Linux system is installed, configure the network card IP via command mode.Configuration files are usually/etc/sysconfig/network-scripts/ifcfg-interface-name 1. Configure the network card IP address

1. RoleMV command to rename a file or directory or move a file from one directory to another. This command is equivalent to a combination of the Ren and move commands under the DOS system. Its use rights are all users.2. FormatMV [options] source

Example 1. If I want to compress/opt/apache/htdocs this folder, but not the inside Picture folder uploads also compressed.Can be ruled out with the--exclude of the tar command. Method Compress all Catalogs The code is as follows

First, service iptables usage:iptables {Start|stop|restart|condrestart|status|panic|save} Second, add configuration Method One: Directly modify the/etc/isysconfig/iptables file; Then: Service iptables restart Method Two: Add with iptables

1. Please find out the list of files that end with. log all 5 days ago under/home Find/home-mtime +5-name "*.log"-type F 2. How to find the httpd process numberPs-ef | grep "[h]ttpd" 3. How to create a user can not login but FTPUseradd-g FTP

Sometimes, there is no problem on the server, but the site is not open, or the MySQL service is started, but not connected, restart in accordance with the still. This is the time to consider whether the port is occupied, or because of software

1. Run the program automatically at power-on startup After Linux is loaded, it initializes hardware and device drivers, and then runs the first process init. Init continues the boot process based on the configuration file to start another process.

As shown, mind map software Freeplane The default interface rendering is poor under Gnu/linux, even if the Preferences→appearance→antialias is set to AntiAlias allLooked up, found that the anti-aliasing effect of Java is not open for the sake of. To

Security Operations under Linux, to be backed up before use cd/etc/yum.repos.d/Lsrenamed CP Centos-base.repo Centos-base.repo.orioriginal documents represented by the OriWget ( get URL download ) :Http://...../Centos-Base-163.repoLsReplace the

Editor Ed Vi/vim (interactive) sed (non-interactive)Use of Vi/vim1. Command modeMove Cursor Direction key HJKLH L MG 1G NGCopy Line yy NyyPaste PDelete Row dd NddDDelete character XSave Exit ZZ2. Bottom-line modeShow line number set NuSet