Error: Queue report unavailable – mail system is down

Zimbra reports “ Error: Queue report unavailable – mail system is down ” We can find that it does not starts correctly the service postfix MTA. But the system shows that everything is working properly: [zimbra@mail]$ zmcontrol status Host mail.ttdconline.com amavis Running antispam Running antivirus Running ldap Running logger Running…

Install JDK 8 from tar.gz Ubuntu

#Login as root sudo su #create jdk directory mkdir /opt/jdk #uncompress, change to your file name tar -zxf jdk-8u5-linux-x64.tar.gz -C /opt/jdk #check if files are there #ls /opt/jdk #update alternatives so the command java point to the new jdk update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_05/bin/java 100 #update alternatives so the command…

Execute / Open JNLP files on Linux – Ubuntu / Debian / Fedora / Arch

The Java Network Launch Protocol (JNLP) is a protocol which enables an application to be launched on a client desktop by using resources that are hosted on a remote web server. Java Plug-in software and Java Web Start software are considered JNLP clients because they can launch remotely hosted applets…
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