389 notes on Linux, tools and troubleshooting
The Zimbra mail server user backup and restore procedure in this article works with both the open source edition and network edition, but cannot be used for version upgrades. Zimbra uses LDAP to store user information…
Zimbra provides distribution lists, or group email, for sending mail to groups, making it convenient to send to all or some recipients using a single email address. Its distribution lists have a limit.
On UNIX or Linux, you can extract selected files or directories from a tarball without first extracting everything. This is more convenient and saves space…
BIND on CentOS 6 may use over 100% CPU when enabled with only zones and zone files configured. Check the logs, SELinux, and bind-chroot.
Some mail servers reject messages sent by PHP scripts with this error: (host ezylinux.com[74.xx.xxx.xxx] said: 550-Verification failed for 550-The mail server could
There are several ways to check the Zimbra version: through a web browser, commands, or the installation history file. I have collected these methods for checking the Zimbra version…
MySQL has many table storage engines, with InnoDB and MyISAM among the most popular. This article compares their features, performance, advantages, and disadvantages.
Out Of Office lets contacts know you cannot reply to email while on vacation, traveling abroad, or away on business by replying to senders with a predefined message.
NUMA is a new architecture for multiprocessor systems. Each physical processor has its own memory, allowing faster memory access than the older architecture. Linux…
