Cloud Applications

Fix and update grub2 system boot 1. if the system is reinstalled or the boot system crashes, the system boot guide item cannot be entered, so that the system cannot be installed. take UbuntuGrub2 as an example to describe how to fix the previous

In ubuntu, thinkpadT60PGPU is cooled down by T60P15-inch high-resolution (1600x1200) independent professional graphics card ATIFireGLV5200Ubuntu. This GPU is very hot, and it can be burned out in the air. You want to lower the gpu frequency. Google..

It is quite common for Linux to shut down firewall commands. so I studied the firewall command for Linux and shared it with you here. I hope you can learn how to disable firewall commands for Linux. 1) it takes effect permanently and will not be

How to use vnc to access your computer and use the same session? 1. run vncserver-alwaysshared and use vncserver-alwaysshared: 1-geometry1440 & amp; times; 9002. there is one of the ubuntu system tools: desktop sharing top... how to use vnc to

Resolution of SSH password-less login configuration error in Hadoop cluster setup some netizens said that firewall should be disabled before ssh is configured. I did it, but it should be okay to close it. Run the sudoufwdisable command to disable

Rsync common errors and command detailed parameters Rsync common errors: Problem 1: www.2cto.com @ ERROR: chrootfailedrsyncerror: errorstartingclient-serverprotocol (code5) atmain. c (1522) [receiver3.0.3] cause :... rsync common errors and command

When compiling Xen Source Code, an error [iasl] is reported. when compiling xen Source Code in CentOS5.4: after makexentoolsstubdom is executed, the following error is reported: ACPIASLcompiler (iasl) isneededwww.2cto. comDownloadandinstallIntelACPI.

Linuxgcc and gdb program debugging usage gcc General debugging format: www.2cto. comgcc-Wall-otesttest.c //-wall display program error details gcc-v // Display gcc version gcc-o {, 3} testtest. c // 1, 2, 3... linux gcc And gdb program debugging

The repair method for the grub menu damage of the dual system is to merge the edisk and the F disk this afternoon. after restarting the computer, it is found that it cannot enter the system, either vista or fedora, which is extremely depressing.

Monitoring entry-Linux average load (loadaverage) has recently been harassed by average server load alarms, but cannot be found when you log on to the server. therefore, it is suspected that the threshold value of the load is set improperly. how

Debian5 upgrade debian6 due to the need to use xen4.0 to provide virtualization, so you need to upgrade some online debian5 systems to debian6.www. 2cto. com1. modify the source to debian61root@10.1.6.200 :~ # Cat/etc/debian_version25.0.23root @...

Linux Cainiao must also know several basic ubuntu commands 1: sudo should be one of the most common commands in linux, because you can temporarily obtain root permissions even if you are not a root user, for example, install and uninstall, modify

For Linux system tuning parameters, all TCP/IP tuning parameters are located in the/proc/sys/net/directory. For example, the following are some of the most important tuning parameters, and their meanings are as follows: 1./proc/sys/net/core/rmem_max

For AWK and Bash, they use different string index systems. The first character of bash is recorded from 0; the first character of awk is recorded from 1; #012345678 ------------ Bash #123456789 ------------- The following is a case of Awk... for AWK

In linux, a single NIC is bound to multiple IP addresses. note: a single NIC is bound to two IP addresses, including China Telecom and China Unicom. The purpose is to ensure that China Unicom works normally when China Telecom fails. System IP

Linux host name hostname setting in Linux is troublesome, and even modifying the host name is no exception. After Linux is installed, its default host name is localhost. Three steps are required to modify the Linux host name. Use hostname to modify

The root ora12 graphic interface root cannot log on directly. 1. first, log on to different users. after logging on to the system, use su-root to switch to root [baolinchuan @ fedora ~]. $ Su-root password: [root @ fedo... information & n fedora 12

Simple usage of Shell script automatic Telnet and execute script of remote machine [plain] #! /Bin/sh (sleep10; echo & quot; username & quot; sleep10; echo & quot; password & quot; sleep10; echo & quot; pwd & quot; sleep50; # echoexit) automatically

Crontab: crontab permission: syntax of the root user and the owner of the crontab file: crontab [-e [UserName] |-l [UserName] |-r [UserName] |-v [UserName] | File... crontab: crontab permission: syntax of the root user and the owner of the crontab

Using a TF card in ubuntu records the problem of using a TF card in ubuntu. Using a TF card in windows is normal, in ubuntu, it becomes 63M. use the Shell code sudofdisk/dev/sdb and then use p to display the current partition for interactive command