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PHP Error Logging to syslog from a chroot

Here’s a little trick to log PHP errors to syslog from an apache chroot. Instead of creating a $CHROOT/dev/log socket in the chroot and configuring syslog to listen on that, just define a bogus virtual host that logs to syslog.

        ServerName JustForOpeningSyslog
        Redirect permanent /
        ErrorLog syslog

Now apache calls openlog(3) with LOG_NDELAY before being chrooted by libapache2-mod-chroot, and libapache2-mod-php4’s syslog(3) calls work just fine.
(Idea stolen from syslog(3) and chroot(2).)

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