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1d
comment When should I consider to add more RAM to VPS instead of CPU?
The OS itself uses RAM for disk caching.
Apr
12
comment Difference between tcp recv buffer and tcp receive window size?
@David The aim of data in flight is not to avoid overfilling the buffer, it's to handle the delay introduced by the communications channel. Adapting to the bandwidth and latency of the communications channel is one issue, adapting to the application's read behavior is another.
Apr
10
comment multiple ips on same server
Why can't you plug any cable in eth2? Couldn't you plug in a machine and assign it 163.88.0.28?
Apr
6
comment Fast Ethernet UDP optimize receive buffers
The buffers are very unlikely to be a significant part of the issue. It's much more likely to be other parts of the network and the software.
Apr
6
comment CPU usage of server extremely low and webpage load time high?
What is that device? It seems like it has unbelievably poor performance.
Apr
1
comment What's a good RLIMIT_CORE setting if I only want backtrace?
I would suggest just modifying your program to generate a backtrace rather than a core dump in the first place, at least as a compile-time option.
Mar
30
comment Squid3 don't caching, always TCP_MISS/200
What makes you think the miss isn't legitimate?
Mar
30
comment php process eating CPU since October
How about investigating. For example, find the process that's eating the CPU and see what it's doing, what files it has open, and so on.
Mar
29
comment Server high memory and cpu - no leads
That really doesn't mean much. If there's no evidence of excessive I/O caused by memory pressure, I'd investigate the CPU usage.
Mar
27
comment Server high memory and cpu - no leads
The amount of memory paged out seems microscopic, less than 1GB on a machine with 32GB of RAM. That could be perfectly normal. I'd focus on the CPU usage unless/until you have better evidence that memory pressure is a problem.
Mar
26
comment Does TCP's MSS hide a mismatched intra-LAN MTU?
I guess it depends on the implementation. MTU black hole detection is usually implemented as well.
Mar
26
comment Does TCP's MSS hide a mismatched intra-LAN MTU?
That won't cause path MTU discovery to fail, but it will cause fragmentation to fail, possibly breaking applications that don't use path MTU discovery.
Mar
26
comment Does TCP's MSS hide a mismatched intra-LAN MTU?
The terminology of your question suggests that MTU's of unrelated connections are supposed to match and that there's some problem if they don't.
Mar
26
comment Proliant DL160SE G6 motherboard - does it need a 6 pin fan to be connected in order to POST?
What cooling do you have on the CPU?
Mar
25
comment configure two routers to one T1
Punch T1 failover switch into your favorite search engine.
Mar
24
comment Route programming to allow a separate subnet on a 2nd NIC to connect through the 1st NIC's internet connection
Do you have control over the device that gives Internet access for the 192.168.128.0/24 network? If not, you'll need to do more than route -- you'll need to do NAT.
Mar
22
comment The Router Mac Address
@MRTgang We only know what you tell us. Your question asks for a way "to do that", but doesn't even explain what "that" is. If you're having trouble with a particular web site or service of some kind, why not talk to the support staff or administration for that service, rather than asking other people to guess what some unspecified site or service might or might not do.
Mar
22
comment The Router Mac Address
What do you mean by "a site"?
Mar
18
comment Cisco IOS - terminate a process (kill a process)
Pretty sure this is only possible with IOS XR.
Mar
15
comment troubleshooting out of memory error messages from mysql
The problem is virtual memory, not RAM. You need a 64-bit OS, not so that you can use more than 4GB of RAM (though that will be nice), but so that your processes can use more than 3GB of virtual memory.