Log into SSH on your dedicated or cloud server.
You can simply run the rm –rf (directory) command.
# rm –rf foldername
How to apply package updates on RHEL
Red Hat Enterprise Linux 5 and later
Before installing an update, make sure all previously released errata relevant to the system have been applied.
To access updates when using Red Hat Enterprise Linux 5, launch the graphical update tool through Applications -> System Tools -> Software Updater, or from the command line via the following command:
Apply Package Updates Using RHN Classic
Systems must be registered before updates from RHN can be applied. This can be done via System -> Administration -> Software Update and in earlier versions via Applications -> System Tools -> Software Updater. It can also be accessed via the command line by using the “rhn_register” command. Registration requires local root access and a valid RHN login that has an unused Update or Management entitlement for the new system you want to register.
Find all Hidden Directories in my Linux Dedicated / Cloud Server
Log into SSH on your dedicated or cloud server.
Type:
# find / -name type d -name “.*” -print0
What is a CPU Soft Lockup
A soft lockup is the symptom of a task or kernel thread using and not releasing a CPU for a period of time.
The technical reason behind a soft lock involves CPU interrupts and nmiwatchdog. For each CPU on the system, a watchdog process gets created. This process “wakes up” once per second, gets the current time stamp for the CPU it is
Setting up an SSL Secured Webserver with CentOS
Installing the required files
Mod_ssl sets up the self -signed certificate
Yum install mod_ssl openssl –y
Add a New Site to Apache
Apache Webserver Will Not Restart / Start
Check for config syntax error
Almost all web server including Apache supports config file syntax checking. To run syntax check for config files, enter:
# httpd –t
# httpd –S
Apache and httpd running but Can’t see website for Centos 6.x
There are several possibilities.
• firewall, iptables configuration
• apache listen address / port
Install a DNS Server on Windows 2008 R2 Dedicated / Cloud Server
1. Open Server Manager. To open Server Manager, click Start, and then click Server Manager.
2. In the results pane, under Roles Summary, click Add roles.
3. In the Add Roles Wizard, if the Before You Begin page appears, click Next.
4. In the Roles list, click DNS Server, and then click Next.
5. Read the information on the DNS Server page, and then click Next.
6. On the Confirm Installation Options page, verify that the DNS Server role will be installed, and then click Install.
