multi-named instance exist?

[dev_null at zoho.com]

That's the good idea, I have written a script to archive that:

start()
{
    if ! ps -efw|grep 'named -u nobody'|grep -v grep >/dev/null 2>&1;then
        /usr/local/bind/sbin/named -u nobody
    fi
}


Thanks.



 > dev_null at zoho.com wrote: 
 > > Hello, 
 > > 
 > > I found a strange case on bind server. 
 > > when one named was running, I started another one or more (the same) named server again, they all got started successsfully. 
 > > 
 > > this is the ps output: 
 > > 
 > > nobody 28312 1 0 10:10 ? 00:00:00 /usr/local/bind/sbin/named -u nobody 
 > > nobody 28359 1 0 10:16 ? 00:00:00 /usr/local/bind/sbin/named -u nobody 
 > > nobody 28362 1 0 10:16 ? 00:00:00 /usr/local/bind/sbin/named -u nobody 
 > > 
 > > But at this time named server behaves not normal. 
 > > for example, I added a NS record and execute rndc reload, the new record could not be queried. 
 > > 
 > > why this happen? 
 > > 
 > > 
 > Do you have a wrapper script that checks whether there is already a 
 > named instance running before starting another one? 
 >  
 > Starting named manually without some sort of wrapper script like that is 
 > dangerous business, the instances have a high possibility of fighting 
 > with each other over the listen port, with the end result often being 
 > that *none* of them are functional. Look at your logs, you'll probably 
 > find some ugliness there. 
 >  
 >  
 >  - Kevin 
 >  
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