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>The Bugzilla Guide - 4.2.1
Release</TH
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><H1
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><A
NAME="security-os"
>4.1. Operating System</A
></H1
><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="security-os-ports"
>4.1.1. TCP/IP Ports</A
></H2
><P
>The TCP/IP standard defines more than 65,000 ports for sending
and receiving traffic. Of those, Bugzilla needs exactly one to operate
(different configurations and options may require up to 3). You should
audit your server and make sure that you aren't listening on any ports
you don't need to be. It's also highly recommended that the server
Bugzilla resides on, along with any other machines you administer, be
placed behind some kind of firewall.
</P
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><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="security-os-accounts"
>4.1.2. System User Accounts</A
></H2
><P
>Many <A
HREF="glossary.html#gloss-daemon"
><I
CLASS="glossterm"
>daemons</I
></A
>, such
as Apache's <TT
CLASS="filename"
>httpd</TT
> or MySQL's
<TT
CLASS="filename"
>mysqld</TT
>, run as either <SPAN
CLASS="QUOTE"
>"root"</SPAN
> or
<SPAN
CLASS="QUOTE"
>"nobody"</SPAN
>. This is even worse on Windows machines where the
majority of <A
HREF="glossary.html#gloss-service"
><I
CLASS="glossterm"
>services</I
></A
>
run as <SPAN
CLASS="QUOTE"
>"SYSTEM"</SPAN
>. While running as <SPAN
CLASS="QUOTE"
>"root"</SPAN
> or
<SPAN
CLASS="QUOTE"
>"SYSTEM"</SPAN
> introduces obvious security concerns, the
problems introduced by running everything as <SPAN
CLASS="QUOTE"
>"nobody"</SPAN
> may
not be so obvious. Basically, if you run every daemon as
<SPAN
CLASS="QUOTE"
>"nobody"</SPAN
> and one of them gets compromised it can
compromise every other daemon running as <SPAN
CLASS="QUOTE"
>"nobody"</SPAN
> on your
machine. For this reason, it is recommended that you create a user
account for each daemon.
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><P
>You will need to set the <CODE
CLASS="option"
>webservergroup</CODE
> option
in <TT
CLASS="filename"
>localconfig</TT
> to the group your web server runs
as. This will allow <TT
CLASS="filename"
>./checksetup.pl</TT
> to set file
permissions on Unix systems so that nothing is world-writable.
</P
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><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="security-os-chroot"
>4.1.3. The <TT
CLASS="filename"
>chroot</TT
> Jail</A
></H2
><P
> If your system supports it, you may wish to consider running
Bugzilla inside of a <TT
CLASS="filename"
>chroot</TT
> jail. This option
provides unprecedented security by restricting anything running
inside the jail from accessing any information outside of it. If you
wish to use this option, please consult the documentation that came
with your system.
</P
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