Linux

LCD display "signal out of range" solution Linux: Linux system prompts "input signal out of range", except for the reason of refreshing frequency, the configuration of the desktop system is also very important. Solution: restart the computer and

Tcptump and wireshark work together with packet capture to check the network package. Some time ago, they have been debugging the MMS program of the Telecom isag, causing many problems. Therefore, you need to capture packets and check the problem

Linux ifconfig, route, and ip commands I: instructions for use of the three commands; 1: ifconfig can enable/disable Nic interfaces; Set subnet mask and broadcast address; set the mtu of the NIC interface; 2: The route can view routes; add routes;

JDK sets environment variables in Ubuntu environment variables: We used global settings before, and now we use user-level settings. Operating System: Ubuntu 12.04 JDK: 1.6.0 _ 45 step: see the previous steps to configure JDK. We mainly modify the

High Availability-Linux Virtual Server (LVS) Linux Virtual Server terms: ctor: Also known as a scheduler, LVS front-end device; realserver: Also known as a real internal Server, is actually providing services; VIP: The published IP address, that is,

An analysis of the number of string operations supported by Bash is surprising. unfortunately, these tools lack unified standards. some are subset of parameter replacement, while others are affected by the UNIX expr command. this leads to

Use ldap to log on to the server and install libnss-ldap, sudo apt-get install libnss-ldap, and modify/etc/ldap. conf, such as base dc = imd, dc = comuri ldap: // ldap.prod.i-md.com/ldap_version 3pam_login_attribute uidpam_lookup_policy using

Preface to the installation and configuration of subversion in linux: svn (subversion) is a version management tool that has emerged in recent years and is the successor of cvs. Currently, most open-source software uses svn as the code version

The LNMP automatic start/stop control script often needs to restart LNMP after changing the LNMP configuration. Here, an automatic script is written to restart LNMP. In addition to convenient restart, the function of disabling and enabling is also

In linux, tar command instance tar packaging is a very important command for server O & M, because many data backups need to be packaged first and then transmitted in scp or rsync, here we will introduce the basic commands of tar to help you review

In Linux, tomcat logs are recorded by date in the tomcat 5 diary under cronolog WIN. in linux, only one catalina is created under tomcat/logs. out parts. A long time. create a log file surge. it is really inconvenient to deal with management. it

User Management Study Notes/etc/passwdroot: x: 0: 0: root:/bin/bash User name: Password bit: uid: gid: Description: Home directory: shell/etc/sahdowroot: $6 $4OMuqg93 $ GJFADLnehFU2zqqc0hFP/xan /. ySlEoEvPKURf6sRmv30i4DrBPo/XXnV1hn.

Install and modify the Apache2 port in UBuntu because the local machine has Nginx, so there is no need to install Apache2. However, to learn how to use icinga today, let's take a look at apache2. Now we are familiar with icinga and use Nginx to

Modify the default configuration environment of debian wheezy: Thinkpad T420s + Debian Wheezy 1, thinkpad disabled touchpad (I have never been used to touchpad anyway) add synclient TouchpadOff = 1 2 at the end of the/etc/profile configuration file,

Linux operating system initrd overview initrd is initial ramdisk, which is a temporary root file system mounted during system boot. the file system to be loaded to activate the system. next, let's take a look at the process from kernel to initrd:

Enable Nginx to disable the version display information. Nginx will display a highlighted version number prompt in the http header or when an error page appears. To ensure security, you can disable this information. The method is very simple, just

Shell obtains the system time and returns the date + % Y-% m-% d of the current day. Output:, assign the value of myDate =$ (date + % Y % m % d) to the variable) assign the current DATE to the DATE variable date =$ (DATE + % Y % m % d). Sometimes we

In Linux, modify the SSH remote logon Port 1 and the SSH remote logon Port 1211 # vi/etc/ssh/sshd_config Port 1211 # Change '# Port 22' to 'port 1211 '; # AddressFamilyany # ListenAddress0.0.0.0 # ListenAddress: # servicesshd restart # restart the

Commands used to refresh DNS cache are often used but are often forgotten. Record it here to be prepared. Hahaha, this may also be a cup of opportunity for many attacking lions and programmers. Run the command ipconfig/displaydns to check the dns

Record: Install scrapy and pywebkitgtk. I installed ubuntu13.04 because scrapy depends on python, so first install python development kit [plain] sudo apt-get install python-dev install easy_install [plain] wget-q