Cloud Applications

There are several methods for linux to modify the number of files opened by processes, but the effects are different. 1. modify/etc/security/limits. conf and add the following two lines * softnofile65536 * hardnofile65536. this method only applies

[O & M personnel? Why? 11) precautions for permission setting during GNU/LinuxNFS server deployment [during O & M? Why? 09] How does one delete massive data files in seconds? Why? 11) precautions for permission setting during GNU/Linux NFS server

The meaning of Linux1 & gt;/dev/null2 & gt; & amp; 1 may be frequently seen in shell: & gt;/dev/null2 & gt; & amp; the result of the 1 command can be defined in the form of % & gt; output/dev/null represents an empty device file & gt; represents the

The 25 SSH commands that must be remembered are free versions of the SSH connection tool. Telnet, rlogin and ftp users may not realize that their passwords transmitted over the Internet are unencrypted, but SSH is encrypted. OpenSSH encrypts all

Linux (CentOS6.3) sets up VNC Remote Desktop Connection. I just studied Linux and selected the CentOS6.3 system. as I started to study Linux, I had a lot of detours for this Remote Desktop Connection, which made everyone laugh. To get this VNC

Interesting Linux command line functions 1. sl command first, install $ sudoapt-getinstallsl and then input $ sl. we can see that the animation steam engine head is redirected from the right of the screen to the left. This locomotive is drawn using

Test whether the remote host port is opened by using telnet110.101.101.10180. You can also use method 1. nmapip-pport test port nmapip show all opened ports according to show close/open determine whether the port is opened... test whether the remote

Some errors solved after the upgrade of Debian7.0 (WheezyStable) are due to the many differences between the entire system and the previous gnome2. even some errors. this article will gradually fix these issues. This article is published on 2013-Mar-

In linux, # is used in Shell scripts to express comments, which is equivalent to the C language // comments. But if # is at the beginning of the first line and is #! (Shebang) is an exception. it indicates that the script uses the specified

Meaning of linux folders (the most complete version)/bin: wherebinaryprogramslive. /boot: thespecialprogramsthatstartthesystemwhenyouturnthemachineon. /dev: aaaaaalllthe & quot; device... meaning of linux folders (the most complete version)/bin:

SSH public key without password authentication 1) generate a password on the master host for 1ssh-keygen & amp; ndash; trsa & amp; ndash; P & amp; #39; & amp; #39; press Enter. the command is generated in the user's main directory by default. ssh

Ubuntu delete openjdk install SunJDK1. download the installation package to the official website: jdk-7-linux-i586.tar.gz2. create the installation directory: sudomkdir/usr/lib/jvm3. decompress: tarzxvf. /jdk-7-linux-i586.tar.gz-C/usr/lib/jvm4. set

Under skyeye modify uboot support 2410 boot from nand my 2440 development board does not norflash, is from nand boot, but yangchuang does not provide the source code of the U-BOOT, so decided to transplant, but there is no good debugging method. It

Modify the CentOS release information to bypass the operating system of the disk array multiplexing software to check the implementation of the project. The entire system uses the disk array, and then the disk array uses the form of load,

Set up ubuntu12.04 + nginx + Percona5.6.121 ### set up a test environment ### 001 # set the root password 002sudopasswdroot003 # switch root004suroot005 # I don't know why, but cannot connect after I change the source, helpless use of default, who

Linux Xserver: The linux graphic interface principle MoblinCore is built on the GnomeMobile platform. I used to play Linux. the submitted content has nothing to do with images. I don't even need to start Xwindows. after I start the system, I

UbuntuLinux automatic mail configuration and mail sending script test environment: Ubuntu11.101. install mutt and msmtp software [plain] sudoapt-getinstallmuttsudoapt-getinstallmsmtp2. edit configuration file vi ~ /. Muttrc [plain] set... ubuntu

BackTrack5r3 run Metasploit to report an error, update the solution stuck in pg (0.15.1) 1. modify File:/opt/metasploit/ruby/lib/ruby/1.9.1/i686-linux/rbconfig. rbCONFIG [& quot; LIBRUBYARG_SHARED & quot;]-Wl,-R-BackTrack5 r3 run Metasploit to

SSH connection timeout settings (1) for security reasons, no input is made within a certain period of time (the number of seconds is unknown, but it is very short) after the SSH connection to the remote server, the server automatically disconnects.

Zabbix monitoring build script #! /Bin/bashwww.2cto.com #1.0 install zabbix depending on the lazy package yuminstall-yhttpdphpmysqlmysql-servergcc * php-mysqlhttpd-manualmod_sslmod_perlmod_auth_mysqlphp-gdphp-... zabbix monitoring build script #!