Linux

Modify network configuration parameters in CentOS 1. Modify the hostname configuration file: /etc/sysconfig/network HOSTNAME = tank # modify the host name NETWORKING = yes www.2cto.com 2. Modify the ip/netmask/gateway configuration file:

Create a certificate and run the following command:/Usr/bin/openssl req-x509-nodes-days 365-newkey rsa: 1024-keyout vsftpd. pem-out vsftpd. pemWww.2cto.comEdit the vsftpd configuration file and add the following content to enable SSL:# Enable SSLSsl_

Linux date-d parameter usage * To print the date of the day before yesterday: www.2cto.com date -- date = '2 days ago '* To print the date of the day three months and one day hence: date -- date = '3 months 1 Day' * To print the day of year of

Xmanager remote server connection settings 1. linux Server Side settings: www.2cto.com ===============================1. modify/etc/inittab and change runlevel to 5, for example, [root @ QRedHat etc] # cat/etc/inittab ...... id: 5: initdefault :.....

In Linux, general software is started as a service.Take the openmeeting installed this time as an example:Www.2cto.comDirectory structure:/root/openmeeting_dirnary/admin. batAdmin. sh...Red5.shRed5-shutdown.batRed5-shutdown.sh...If you want to start

Linux grep command set for analyzing apache logs in linux. A good article is worth noting. With these commands, apache log analysis is a major part of the history. Www.2cto.com instance: Month. january Feb. february Mar. march April Apr. april May.

Shell operation array Shell code. /test. sh "100,200 300,400 500,600" hhhh www.2cto.com Description: The parameter Delimiter is a space by default, so the array parameters are expanded in double quotation marks, shell code dd = 'date + % Y % m % d _

Tarball compilation and installation and upgrade-make and patch 1. Concept: Compile the source code into an executable program of a binary mechanism. make and the detection program generate the makefile of the compilation connection file together

File copy, delete, and move command cp command www.2cto.com this command is used to copy the given file or directory to another file or directory, just like the copy command in DOS, very powerful. Syntax: cp [Option] source file or directory target

Work commonly used Linux Command 1, modify the password: passwd username www.2cto.com 2, download jdk-6u25-linux-i586.bin 3, run (cd to enter a directory,/usr/jdk-6u25-linux-i586.bin Decompression Operation) sh jdk-6u25-linux-i586.bin 4. Change the

In linux, find webshell and first get to know the pony. Generally, it is easy to expose the Trojan horse. Hackers will leave a hand to add the pony to the normal PHP file. // The password is a. Use the Chinese kitchen knife to connect to the hidden

Press Ctrl + Alt + T to add the startup icon of the application to the left-side startup bar of Ubuntu 12.04, open Terminal, and install gnome-panel: code: after sudo apt-get install -- no-install-recommends gnome-panel is successfully installed,

Ubuntu & Fedora uses the accumulated console log to record most articles on the Internet using script commands, but it still cannot be removed using commands provided on the Internet. We can see that Realtek's Technical Support uses PuTTY records,

Tar command-linux tar command first package the file and then compress it. Examples] [mainly about tar, others include zip/unzip/rar/unrar] I. Package or unpack files: package/decompress the package with the extension .tar. For example: # tar-cf all.

Dynamic library *. so production-linuxThe basic knowledge of linux dynamic library. so is used to create a dynamic library *. so in linux. 1. Create a dynamic library in linux // so_test.h # include "stdio. h "void test_a (); void test_ B (); void

Network Programming-TCP/IP BasicsI. ISO/OSI reference model 1. OSI (open system interconnection) The open system interconnection model is a layer-7 network layered model defined by ISO (InternationalOrganization for Standardization. 2. q physical

Fedora program uninstall example: Suppose you have downloaded the software: ruby-1.9.3-p194.tar.gz, unzip the installation. Uninstall it now. 1. rpm-q-a | grep ruby: Query all the ruby software packages installed in the current system. 2. Find out

View the cpu information of a linux machine. view the number of cores cat/proc/cpuinfo | grep processor | wc-l CPU clock speed cat/proc/cpuinfo | grep MHz | uniq /proc/cpuinfo "query model name, then go to the intel official website to query (http://

Bumblebee on ubuntu13.04 No solution for graphics devices detected [same for dual graphics cards]: [ERROR] Cannot access secondary GPU-error: [XORG] (EE) No devices detected. [ERROR] Aborting because fallback start is disabled. nvidia driver case:

Linux Startup SequenceLinux Startup sequence: 1. BIOS self-check 2. Run the system kernel and check the hardware 3. Run the system's first process init4. init reads the information in the system boot configuration file/etc/inittab for initialization/