change hostname linux redhat

@ wljs root] # vi/etc/xinetd. d/telnet Find disable = yes and change Yes to No. 2. Activate the service [Root @ wljs root] # service xinetd restart Iii. Test services [Root @ wljs root] # telnet IP (or hostname) If the configuration is correct, the system prompts you to enter the user name and password of the remote machine. Login: Password: Note: Only common users are allowed by default

Recently studied Rhce, Umask here, the book said to modify/etc/profile and/ETC/BASHRC two files, but did not explain the two differences. So after viewing the Internet, I understand how each is used. /etc/profile is the corresponding login,/ETC/BASHRC is the corresponding open shell. But the actual use of the difference between, if BASHRC is the corresponding shell, then change this file is not OK? Finally, the practice of their own, the discovery is

I. Environment Description:Original Server 192.168.1.110 Windows Server 2003 system character set: ZHS16GBKThe new ECS 192.168.1.120 RedHat Enterprise Linux system character set is WE8ISO8859PI. Ii. Problem description:1.110 The database on the server is a Chinese character set, and the values of multiple columns in the data table are Chinese.The character set in the database on the 1.120 server does not su

Transferred from: http://blog.csdn.net/zxs9999/article/details/6930736Ubuntu installation using SSHUbuntu does not have the default SSH service installed, if you link ubuntu via SSH, you need to manually install Ssh-server. To determine if the SSH service is installed, you can do this by: XJJ@xjj-desktop:~$ ssh localhost Ssh:connect to host localhost port 22:connection refused As shown above, it means that no installation has yet been installed and can be installed via apt, wit

In VMware cloned Redhat Linux 6.0, restart the network card error, unable to ping the IP address of eth0.Failure phenomena:Service Network restartShutting down loopback insterface: [OK]Bringing Up loopback insterface: [OK]Bringing up interface Eth0:device eth0 does no seem to be present,delaying initialization. [FAILED]650) this.width=650; "src=" http://www.linuxidc.com/upload/2012_12/121217104484381.jpg "a

Wow! Installation is very annoying Ah, the last discovery is the cause of their own network. Meditation Summary!!!Python is 3.6CentOS 6 64-bit1. Install Python801704712. Install Pipwget https://bootstrap.pypa.io/get-pip.py--no-check-certificateget-pip.pyMay be error!!! Such as:PIP is configured with locations that require TLS/SSL and however the SSL module in Python are not available.Execute Python and go to the Python command line:It may also be an error.Import SSLTraceback (most recent ):Fil

1.modifying operating system core parametersUnder root user, perform the following steps:1.1Modify the user'sSHELLThe RestrictionsModify The/etc/security/limits.conf fileinput command:vi/etc/security/limits.conf, press i to enter edit mode, add the following content to the file. Oracle Soft Nproc 2047163841024x768655361.2Modify/etc/pam.d/loginfileinput command:vi/etc/pam.d/login, press i to enter edit mode, add the following content to the file. session required /lib/security/pam_limits.sosessio

you are doing. In some cases, if the process is working and cannot be interrupted, the process can ignore the sigterm signal.For Sigkill signals, the process cannot be ignored. This is a "I don't care what you are doing, stop immediately" signal. If you send a sigkill signal to the process, Linux will stop the process thereSix. User Login Audit1W # #查看使用系统的当前用户有那些W-f ##-f see where to use2Last # #查看用户登陆成功历史3.LASTB # #查看用户登陆未成功历史Seven. Top commandTop

In RedHat Linux 5, install PHP SELinux protection and restart apache in the last step. The following error is reported: Httpd: Syntax error on line 53 of/usr/local/apache/conf/httpd. conf: Cannot load/usr/local/apache/modules/libphp5.so into server:/usr/local/apache/modules/libphp5.so: cannot restore segment prot after reloc: Permission denied Cause: There is a SELinux protection m

①ls default display of files in the current directory Displays the current directory in which to use the command PWD (printing working directory) So LS and ls/root show the same effect. ②ls–l displaying full information about a file File type of Linux: Introduction -: Normal file D: Catalog file B: Block device files (blocks) C: Character device file (character) L: Symbolic Connection files (symbolic link file) P: Com

"alt=" wkiol1wlxhigc2u9aacxsfuor0k860.jpg "/>650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/EE/wKiom1WLxF3SByxBAACLN-89AeQ879.jpg "style=" float: none; "title=" slave operation. png "alt=" wkiom1wlxf3sbyxbaacln-89aeq879.jpg "/>6. Configure as Slave mode650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/6E/EE/wKiom1WLxKbh5zb8AABa913xWC0822.jpg "title=" 9.png " alt= "Wkiom1wlxkbh5zb8aaba913xwc0822.jpg"/>7. Establish the DB1 library to see the effect.Create the DB1 library i

Set two-way MySQL Data Synchronization I. Prepare serversBecause the binlog formats of different MySQL versions (Binary logs) may be different, the best combination is that the MySQL version of the Master is the same or lower than the Slave version, the Master version must not be higher than the Slave version.More... | less... | In this article, we assume that the Master server and Slave server (Slave) versions are 5.0.27, and the operating system is RedHat