Thursday , 19 September 2019
Latest topics!!

Administrative tools

How to do IMAP Sync, Email migration using imapsync

Email migration is always a head ache when it comes to do between platforms like windows to linux.  Also we may face issues, when it is done using migration tools sometimes mail will not get migrated completely. We can do the email migration easly from whatever platforms to linux using IMAPSync. Since it is done based on protocol(IMAP) and not ... Read More »

How to check memory usage in Linux?

Usually the memory usage is checked for with the help of free command. The most common being “free -m” which shows the memory usage in MB. Here I will explain to you guys the output of memory usage in a Linux server. Consider the following example: [root@test ~]$ free -m total       used       free     shared    buffers     cached Mem:         48143      47704        438        103       ... Read More »

How to identify boot and root filesystems while on SystemRescuecd?

SystemRescuecd? Consider the worst case, you are not remembering the filesystem data to proceed with recovery and you may need to know the name of the boot and root partitions where Linux is installed. You can run fsarchiver probe simple or fsarchiver probe detailed from SystemRescuecd to show the list of filesystems of your computer. Here is an example: #root@sysresccd ... Read More »

How to managing services with systemd in CentOS/RedHat7 ?

In most of the linux distributions init daemon is going to be replaced with systemd deamon.  It has been already replaced in some distributions as Fedora is the first to do the same.  Also in Centos 7 and Redhat 7 the init deamon is is replaced with systemd. Similar to  init daemon systemd is the parent process of all other ... Read More »

How to install SSL on my domain without dedicated IP address?

Is it possible to install SSL on my domain domain which has shared IP address? It’s hosted on a cPanel server? Yeah, it’s possible! We TwinBee supports SSL on all domains on our shared servers, which does not depend on the IP address associated with the domain. You do not have a dedicated IP address to purchase and install SSL ... Read More »

Managing Linux RPM packages – how to?

As a server admin, you people must have the knowledge of how to manage Linux RPMs via command line. Redhat Package Manager is abbreviated as RPM. Managing Linux packages via RPM commands should be a little tougher than managing it via YUM. Using yum command should be better than rpm command after Red Hat Enterprise Linux 5, since it can ... Read More »

How to enable TLS1.2 in apache?

As we know that the TLS1.2 is the only secure version of TLS available. We can enable TLS1.2 in Apache. Check current TLS version using the command below: openssl ciphers -v | awk '{print $2}' | sort | uniq Before enabling the TLS1.2 in apache, we have to check that if “ssl_module” is enabled in the server. Use the below ... Read More »

What is Sticky Bit in linux

What is Sticky Bit in linux? Sticky bit is a “flag” added to a directory/file to avoid removing/renaming it by user other than the owner or root. Please check the below scenario: Create a directory named “twinbee” mkdir twinbee Give all the users read-write-execute access to it chmod 777 twinbee Check the permission using the command as shown below: ls ... Read More »