Change Linux Servers HOSTNAME
RHEL7/CentOS7 Servers:
Temporary Change (will not sustain a reboot)
Servers hostname can be changed temporarily by running the following command
hostname ...
Bi-Directional File Sync Using UNISON
UNISON File Synchronizer can be used to perform bi-directional sync between two directories (local or remote)
Installation:
CentOS:
UNISON file synchronizer can ...
CentOS Key Based SSH Login
SSH Key based authentication is very useful for transferring data and for some data sync applications to work, to ...
Installing Zimbra 8.6 on CentOS 7
1. Setup hostname
2. Add entry in hosts file
3. Install dependencies
yum install nmap-ncat perl perl-core sysstat
4. Download Zimbra installation file ...
Log all SFTP transactions in one log file
1. Add the below line in /etc/ssh/sshd_config
Subsystem sftp /usr/libexec/openssh/sftp-server -l VERBOSE -f LOCAL3
2. Add the below line in /etc/rsyslog.conf
local3.* ...
Exim:Important Exim Mail Server commands
1. To check the number of emails present in the queue:
exim -bpc
2. To check the emails present in the ...
Zimbra: Assign a dedicated Outgoing SMTP IP for a domain
Zimbra Outgoing SMTP IP per Domain
1. Add the following line in “/opt/zimbra/postfix/conf/main.cf”
sender_dependent_default_transport_maps = regexp:/opt/zimbra/postfix/conf/sdd_transport_maps.regexp
2. Create the file “/opt/zimbra/postfix/conf/sdd_transport_maps.regexp” and ...