How do I install and configure ssh server and client under CentOS Linux operating systems?
You need to install the following packages (which are installed by default until and unless you removed it or skipped it while installing CentOS)
- openssh-clients : The OpenSSH client applications
- openssh-server : The OpenSSH server daemon
You can use the File Checksum Integrity Verifier (FCIV) utility to compute the MD5 or SHA-1 cryptographic hash values of a file. For additional information about the File Checksum Integrity Verifier (FCIV) utility, click the following article number to view the article in the Microsoft Knowledge Base:
To compute the MD5 and the SHA-1 hash values for a file, type the following command at a command line:
> FCIV -md5 -sha1 path\filename.ext
For example, to compute the MD5 and SHA-1 hash values for the Shdocvw.dll file in your %Systemroot%\System32 folder, type the following command:
> FCIV -md5 -sha1 c:\windows\system32\shdocvw.dll
This tutorial shows you how to install and configure FTP server in CentOS 6.5. Though the steps provided here are tested in CentOS 6.5, it should work on RHEL 6.x(x stands for version) and Scientific Linux 6.x too. In this tutorial my ftp server ip and hostname are 192.168.1.200 and mainserver.ostechnix.com respectively. I have already configured a local repository and i am gonna to install FTP from my local repository. For more information navigate to setup your local repoistory in CentOS 6 / RHEL 6 / Scientific Linux.
On the command line, enter the command:
# mysqladmin -uroot -p -hlocalhost version
Enter password: ********
mysqladmin Ver 8.42 Distrib 5.1.73, for redhat-linux-gnu on x86_64
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
Server version 5.1.73
Protocol version 10
Connection Localhost via UNIX socket
UNIX socket /var/lib/mysql/mysql.sock
Uptime: 16 hours 18 min 39 sec
Threads: 1 Questions: 296 Slow queries: 0 Opens: 25 Flush tables: 1 Open tables: 18 Queries per second avg: 0.5
There you can get the version of MySQL.
Like in other wiki systems: Simply type the name of the new page in the address bar of your browser. For example, if you are in http://server/projects/xyz/wiki, you can add a page named ‘blubber’ if you add this to your URL: http://server/projects/xyz/wiki/blubber.
After upgrading Red5 v.1.0.1 to Red5 v.1.0.5 on CentOS 6.6, starting the service displays OK status but stopping failed. In fact, starting was not successful, thus stopping fails. The main reason it that the latest version requires Java 8 to make it run. After upgrading Java, restarting Red5 works well.
You need root access to add a user to the sudoers file. Enter as root user:
# su -
and put in the root password. Then use this command
to make changes on the /etc/sudoers file. It is not recommended to edit the file using text editor.
To add a user, enter the line in appropriate location.
username ALL=(ALL) ALL
%groupname ALL=(ALL) ALL
# yum install setuptool system-config-securitylevel-tui authconfig system-config-network-tui system-config-firewall-tui ntsysv system-config-keyboard
To correct Firewall Configuration Error:
# yum install dbus
# service messagebus start
Starting system message bus: [ OK ]
# chkconfig messagebus on