On Mon, 22 Oct 2001 [EMAIL PROTECTED] wrote: > > Hi everyone, > > > > I experienced about a minute or so of my server not responding to > > things that require a certain type of access tonight. By "a certain > > type of access" I mean things like loading a new wterm window, or an > > invocation of "ps ax", or opening mail via IMAP. I don't know what the > > common > > denominator is. Mouse works, keyboard works, an open IPTraf window > > works and can be manipulated, Opera (already open) works. > > > > During this time I notice that IPTraf's UDP window is very very active > > with DNS requests. Because IPTraf uses reverse lookups to identify > > the not responding thing is i think because of the load > i think syslog is eating the box resources ( it is a proven fact that > syslog can do this and also BIND) > so you got the culprits i think > BIND - has no mechanism in controling the use of your resources so it will > just eat up all the resources it can.
> Syslog - no mechanism either Yes there is. with syslog you can 'prepend' a '-' at the beginning of the filename of the log file in syslogd.conf. This will make all writes to that particular log file async/buffered, and will lessen the load syslogd will take on your system. When you do this, just be aware that since writes will now be buffered, there is a possibility that some logs will be lost if a power failure occurs. If this is unacceptable set up a syslog server, and point your syslogd to log there. I've done this on busy smtp servers and it radically reduces the load. > and yeah i almost forgot use djbdns ( dnscache for you resolving proxy dns > server and tinydns for your authoritative content dns server) :) shempre may plugging sa mga sponsor heheheheh _ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
