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kaptain1

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Hi all,

I'm experiencing this problem where process SVCHOST.EXE (user - NETWORK SERVICE) increases its' memory useage daily! When i restart the server, it uses only about 30mb of RAM or so, but each day it gains about 100MB of RAM. So after 5 days of not restarting server, memory usage for this particular svchost.exe service grew up to 600mb!

I'm using Kerio demo version which is installed on a Win2003 server (2.4ghz dual core Xeon, 4gb ram, raid1 raptors) we also this same server for Shared Folders and auto backups. We have about 30 users.


Any ideas?

Thank You

[Updated on: Tue, 08 July 2008 08:23]

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ratiocura

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There are usually multiple instances of svchost running for various services.

You will first want to find out what instance of svchost is actually running what.

In task manager, go into processes and go to view, select columns and check PID(Process identifier)

Make a note of the svchost PID that is using increased abouts of ram.

Then go into the command prompt and type "tasklist /svc" that will give you a list of services that are running and what dll's are running inside each svchost instance.
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kaptain1

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Thanks Ratio! Very valuable tip!

That svchost.exe was part of DHCP/DNS Cache Kerio service. I think earlier i increased cache to 2GB, so maybe that was the problem. I disabled cache and will report back with results.

Does that DNS Cache feature really helps?

[Updated on: Tue, 08 July 2008 10:08]

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ratiocura

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DNS Forwarding caching sits in RAM, it caches DNS forwarding results to make repeated DNS lookups faster, the amount of forwarding lookups your DNS server requests and your internet connection speed depends on whether you really need it.

If you have high volumes of lookups or a slow connection it would be worth while to cache.
But you would want to set your cache limits according to how much spare RAM you can afford to give it because caches will generally use as much as they are given.
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