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diff --git a/doc/guide.tex b/doc/guide.tex index 1ce9f3325..5237ef9fd 100644 --- a/doc/guide.tex +++ b/doc/guide.tex @@ -3386,6 +3386,33 @@ and you must login in the Jabber server with an account with proper privileges. +\section{Change Computer Hostname} +\label{changeerlangnodename} + +ejabberd uses the distributed Mnesia database. +Being distributed, Mnesia enforces consistency of its file, +so it stores the name of the Erlang node in it. +The name of an Erlang node includes the hostname of the computer. +So, the name of the Erlang node changes +if you change the name of the machine in which ejabberd runs, +or when you move ejabberd to a different machine. + +So, if you want to change the computer hostname where ejabberd is installed, +you must follow these instructions: +\begin{enumerate} + \item In the old server, backup the Mnesia database using the Web Interface or \term{ejabberdctl}. + For example: +\begin{verbatim} +ejabberdctl backup /tmp/ejabberd-oldhost.backup +\end{verbatim} + \item In the new server, restore the backup file using the Web Interface or \term{ejabberdctl}. + For example: +\begin{verbatim} +ejabberdctl restore /tmp/ejabberd-oldhost.backup +\end{verbatim} +\end{enumerate} + + \chapter{Securing ejabberd} \section{Firewall Settings} \label{firewall} |