Re: Restart BIND from a php script

Subject: [PHP] Restart BIND from a php script > Not sure how to go about this. I'd like a way to restart bind from a php > script I have. > > The biggest problems I have are permission related. Calling exec(), > system() or using popen() all fail due to the permissions. I tried > making a suid bash script that did the same thing and this failed too. > Seems like it failed to set itself suid root while being called from the > php script. > > Finally I tried make a suid C prog to restart bind and then calling that > from a php script but that fails too. > > Any ideas? > Considering that you don't want world+dog able to independently supervise the running of any daemon you might: Write a cron job that examines a php writeable flat file for a message indicating a named.reload (or ndc restart) is called for. Script into that cron job all the security you can (source check, detect accompanying hash, etc.) I.e., let your system supervise a bind restart request from "outside". And let your cronned script do the restarts from whatever shell script or c code you want. Only let your .php yell 'Fire'; make your checking script 'decide' to pull the trigger. Alternative - script checks a db field - (harder to write from shell or c ) consider .htaccess plus cookie checks too and .htpasswd hope this helps