1, linux chkconfig command description: this command use to update(add or delete) and search system running level info usage: chkconfig [--add][--del][--list] system service chkconfig [--level <level number>] system service [on/off/reset] level number: 0,shutdown server 1,simple user mode 2,multi-user mode without netowrk connection 3,multi-user mode with netowrk connection 4,unavailable 5,multi-user mode with graphical interfaces 6, reboot
1,check if had been installed [root@TKE3 home]# rpm -qa|grep vnc-server [root@TKE3 home]# [root@TKE3 home]# yum install vnc-server Loaded plugins: fastestmirror .... install info here Complete! [root@TKE3 home]# rpm -qa|grep vnc-server vnc-server-4.1.2-14.el5_6.6 [root@TKE3 home]# 2,create vnc user and add it in vnc config file [root@TKE3 home]# useradd vncuser [root@TKE3 home]# passwd vncuser Changing password for user vncuser. New UNIX password: BAD PASSWORD: it is based on a dictionary w
mysql error :This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA
Linux权限非常的一重要，正常情况下一个文件或目录有三种角色，分别为：目录或文件拥有者（User）、所属群组（Group）、其他用户（Other），每个角色对应：读、写、可执行（rwx）。这也是我们最常见的权限，#ls -l 所看到第一列内容。第一位是文件类型，如 d 是目录、－是普通文件、l 是链接文件、c 是字符文件、b 是块文件等。 剩下９位即是文件对应三种角色的权限。
linux下如果忘记了root密码，该如何去解决呢，这里有相应的方法可以帮助你解决
由于系统突然死机，重启之后mysql报错:Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master's binary log is corrupted (you can check this by running 'mysqlbinlog' on the binary log), the slave's relay log is corrupted (you can check this by running 'mysqlbinlog' on the relay log), a network problem, or a bug in the master's or slave's MySQL code. If you want to check the master's binary log or slave's relay log, you will be abl
mysql 随机查询N条记录
今天在配置mysql replication的时候，修改完my.cnf文件，然后重启mysql service ,当执行下列命名的时候报错： mysql> change master to master_host='127.0.0.1', master_user='usertest', master_pass word='usertest', master_log_file='mysql-bin-000002', master_log_pos=8; ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log
在多个developer对同一模块的代码作开发修改，提交SVN 时如果不填写comment信息，很容易造成别的developer的困扰，但是SVN本身并不提供这种强制写log的功能，而是通过一系列的钩子程序(我们称为hook脚本)，在提交之前(pre-commit)，提交过程中(start-commit)，提交之后(post-commit)，调用预定的钩子程序来完成一些附加的功能 此时可以利用下面的脚本添加一个svn hook强制用户填写comment信息
centos下python版本升级，从python2.4升级到python2.6
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