Linux

1. check whether JDK is installed java login to the system with the root user, open a terminal input # rpm-qa | grep gcj display content contains the following information # java-1.4.2-gcj-compat-1.4.2.0-40jpp.112 # java-1.4.2-gcj-compat-devel-l.4.2.

Download To xen-3.4.4.tar.gz from official website, decompress, directly make; the following error occurs: select-repository: Searching '. :.. for linux-2.6.18-xen.hgselect-repository: Ignoring '. 'unable to determine path to Linux source tree.

The linux Command Line can do all the work, which is very different from the ms product. Up to now, many fans have never been tired of typing on the keyboard, in heavy management and keyboard work, regular expressions play a major role in

Nginx is an http and reverse proxy server. In high-concurrency environments, the performance is better than apache, so we also install nginx In ubuntu. Download nginx-0.8.54.tar.gz, decompress and compile the installation command instructions: tar

I have installed the linux system on the vmwarevm and successfully installed jdk. Now I can run my own JAVA program. But after extracting the eclipse-jee-galileo-SR2-linux-gtk.tar file, running eclipse always fails. It prompts that jre jdk is not

I. install TortoiseSVNyum install-y subversion in CentOS II. SVN client command 1. Run the file checkout command to the local directory svn checkout path (path is the directory on the server) for example: svn checkout svn: // 192.168.1.1/pro/domain

[Too program open files] is reported in the product today. The related knowledge is as follows. View the maximum number of files allowed to be opened by the system # cat/proc/sys/fs/file-max view the maximum number of files allowed to be opened by

Enter http: // ip: 5801 in the browser for remote control. Install jre and check whether the environment is installed.Java code rpm-q vnc-server www.2cto.com start the service Java code vncserver: 1. Change the service password Java code vncpasswd

Two days ago, tomcat running on the server generated a log file of 12 GB, resulting in insufficient folder space, tomcat is suspended, found online, you can regularly clean all log files. /opt/tomcat/logs/catalina. out is obtained by running the

The tail command of a linux Command per day is used to display the last few lines of the file. The default value is 10 lines. It is generally used to view log files. The latest file content is continuously output based on log updates. You do not

1. Set up a CA Server [root @ zzu ~] # Yum install openssl * [root @ zzu ~] # Cd/etc/pki/[root @ zzu pki] # vim tls/openssl. cnf45 dir =/etc/pki/CA88 countryName = optional 89 Environment = optional 90 organizationName = optional136

Twitter Storm Ubuntu standalone installation operating system environment: install storm in Ubuntu 13.04 KVM Virtual Machine to install the following package: python, zookeeper, zeromq, jzmq, storm Process Ubuntu + Storm single-host environment

Ubuntu GUI InjuryTo be honest, the Ubuntu GUI looks really good, but there are also a lot of problems, and stability is really unpleasant. Recently, I have encountered a NetworManager management problem! I believe someone has met me! Ubuntu

Talking about linux performance optimization 21: Analysis of mail system talking about linux performance optimization 20: module management and kernel compilation http://www.bkjia.com/ OS /201308/235094.html mail application service can allow

NIS client settings and InstancesThe IP address of the nis Server server1.example.com nis domain example.com nis server uses port 866  

Add users in linux and add key linuxadduser songhqmkdir ~ to users ~ Songhq/. sshecho ssh-dss secure + cYRR + secure + F0p + secure + hybrid/6jtLP7F4/rioco9hff7pkcmip + sM/OifDDhsm28K2UvVVPM/EAAAAVAN5l9YEeK Examples/s92X8wu + examples/yNkmh +

The ibus installed in fedora 15 cannot be called up by chinese-pinyin.Environment: windows 7 + virtualbox + fedora 15 kdeLog on as a normal user and switch to root to use yum to install ibus# Yum install ibus# Yum install ibus-sunpinyinWhen the iubs

Granting sudo permissions to common users (Linux) sudo is a common tool in linux that allows common users to use superuser permissions. Add sudo before the Super User permission, for example, sudo vim/xxxxxxxxxx, and then the system prompts you to

Powervm partitioning and installation system 1. Use hmc to create a partition configuration file name and allocate memory. Note that vscsi devices must be created in the middle of the maximum number of slots in the cpu. Pay attention to the ID

The linux MD5 Command wants to generate an MD5 string today, and the shell has an md5sum command, but this is suitable for MD5 verification, if you want to generate the MD5 of the string, you can echo-n '000000' | md5sum is not very convenient. so I