i missed another keypoint.. if you are running unix/linux server, you need to have a properly setup resolv.conf
or if you experience a slowness while you quering your own domains, check whether you DNS servers are providing "authoritative" answers to your domains. ~viraj. On 8/4/05, kalinga <[EMAIL PROTECTED]> wrote: > On 8/4/05, kalinga <[EMAIL PROTECTED]> wrote: > > On 8/4/05, Kristen G. Thorson <[EMAIL PROTECTED]> wrote: > > > I can say from personal experience that gethostbyaddr() and > > > gethostbyname() can seem almost randomly slow, depending on machine, OS, > > > > software, who knows. I'm not smart enough to figure out the reason why > > > > it can vary so much on machines with nearly the same configuration, but > > > > I can tell you that it works perfectly fast most of the time. Then > > > there's that other 5% where something makes it slow as molasses. > > > > > > I have two machines that are so similar it's not funny, but > > > gethostbyname() takes 1/10 s on one, and 5 s on the other. I have yet > > > to figure out what's the difference between them that causing this. > > if you are quering a external host, the bad network conditions may > cause delay in results. > > if your server is connected to a heavily loaded hub/ cheap switch, or > the target hosts DNS servers are poorly configured/ slow in responce > it adds further delay to your result. > > try dig/ nslookup on your server for the target hostname/address, you > may experience the same delay as with the php function. > > > ~viraj. > > > > > > > > > > kgt > > > > > > > > > > > > Dotan Cohen wrote: > > > > > > >Hi all, I just discovered the gethostbyaddr() function. By reading the > > > >user contributed notes, I get the impression that either this function > > > >may cause performance problems, or a user-contributed function based > > > >upon it may be slow. So, is gethostbyaddr() slow? Is it dangerous? > > > >Thanks! > > > > > > > >Dotan Cohen > > > >http://lyricslist.com/lyrics/artist_albums/56/bangles.php > > > >The Bangles Song Lyrics > > > > > > > > > > > > > > > > > > -- > > > PHP General Mailing List (http://www.php.net/) > > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
