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- Jan 1, 1970
- 0
HI,
I have 2 Sun machines which seem to frequently take ages to respond with a login prompt after trying to telnet (or equivalent) into the boxes.
example machine :- SunOS dawg 5.5.1 Generic_103640-32 sun4u sparc SUNW,Ultra-Enterprise.
I have checked memory/cpu and disk (vmstat and third party script) and they all seem to be running under capacity or low percentages, 25% to 40%.
So the machine should be fine.
Machine 1 is a DNS server and also runs IMAP for email. Machine 2 is a Library App and runs Sybase (logged in users) and a web server (remote users browse catalogue).
What I want to know is, how do I guage things like
1. How can I tell if the port allocation mechanism is running under strain?
2. How can I trace the source of the delay in dealing with telnet requests?
3. netstat gives plenty of ip details for connections, but doesnt tell me if the load is fine or is too much...
4. can anyone recommend a good freeware performance app?
[this isnt a local PC/client problem as it is variable]
This is getting a pain as my knowledge in this area is limited and the help I find is either too low-level (programmers/sockets/etc) or too high-level (beginners, this is what a socket/port is).
excuse my mixing of terminologies...
Thanks all
Chest
I have 2 Sun machines which seem to frequently take ages to respond with a login prompt after trying to telnet (or equivalent) into the boxes.
example machine :- SunOS dawg 5.5.1 Generic_103640-32 sun4u sparc SUNW,Ultra-Enterprise.
I have checked memory/cpu and disk (vmstat and third party script) and they all seem to be running under capacity or low percentages, 25% to 40%.
So the machine should be fine.
Machine 1 is a DNS server and also runs IMAP for email. Machine 2 is a Library App and runs Sybase (logged in users) and a web server (remote users browse catalogue).
What I want to know is, how do I guage things like
1. How can I tell if the port allocation mechanism is running under strain?
2. How can I trace the source of the delay in dealing with telnet requests?
3. netstat gives plenty of ip details for connections, but doesnt tell me if the load is fine or is too much...
4. can anyone recommend a good freeware performance app?
[this isnt a local PC/client problem as it is variable]
This is getting a pain as my knowledge in this area is limited and the help I find is either too low-level (programmers/sockets/etc) or too high-level (beginners, this is what a socket/port is).
excuse my mixing of terminologies...
Thanks all
Chest