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Jul
24
comment understanding web server memory usage
@user3413046 That's not a simple question. Paging is one way to tell. Poor performance is another. Experience with similar systems and understanding their behavior is another way. It takes years of experience to understand how to make those kinds of judgments. Do not believe anyone who tells you there are shortcuts or simple rules of thumb that always work.
Jul
24
comment understanding web server memory usage
@user3413046 Don't do this. Understand how memory actually works and understand your system in terms of what it's really doing rather than making up unreal terms to force an unrealistic mental model that doesn't apply. The real usage is, and should be, as much as possible. Almost all RAM usage is effectively as a cache.
Jul
15
comment 1 error when downloading file over ssl in internet explorer
Then I'd suggest capturing the traffic of the failed connection attempt and analyzing it.
Jul
15
comment 1 error when downloading file over ssl in internet explorer
You may be wrong that it's the client's fault. The client may be (quite rightly) rejecting an ephemeral DH key that is export grade used with a symmetric cipher that is stronger. It is probably either IE's fix for logjam or OpenSSL's fix for logjam. Does your application use OpenSSL? If so, what OpenSSL version are you using? Does your application customize the generation of ephemeral DH keys (by calling SSL_CTX_set_tmp_dh_callback)?
Jul
13
comment Minimum requirements seem to much for a 32 bit application
There is no physical memory limit for 32-bit processes (see my answer). There is only one memory limit on 32-bit processes, and it's a virtual limit. On Windows, it's either 2GB or 4GB depending on whether the application is LAA.
Jul
13
comment Minimum requirements seem to much for a 32 bit application
@w0051977 No, not at all. It's not even remotely like that. The decision to use RAM or the pagefile is totally up to the OS which isn't subject to any 4GB limitation.
Jul
13
comment Minimum requirements seem to much for a 32 bit application
Just little things like the phrase "in a few hours".
Jul
12
comment Minimum requirements seem to much for a 32 bit application
By the way, these "requirements" seem very suspicious. It is very unusual, for example, to require a specific number of cores. And the wording seems awfully haphazard. I would doubt that these "requirements" are reliable indications of what the application requires.
Jun
24
comment Understanding virtual memory usage > swap + physical on Linux
This is totally confused. Overcommit is not what lets you allocate more virtual memory than physical memory plus swap space. You could do that even without overcommit. (For example, on a machine with 2GB of RAM, no swap, and no overcommit, you can still memory map a 4GB file read only, using 4GB of virtual memory.)
Jun
22
comment 80% memory utilization on server- is this just caching?
Is this a virtual machine or is this running on bare metal?
Jun
16
comment Cascade 2 routers with dhcp
It's all one LAN. The DHCP server will serve the LAN. You're using the routers as bridges, they don't care whether the traffic they're bridging is DHCP or not.
Jun
15
comment Cascade 2 routers with dhcp
"Since this in in a house, I cold have several guests over so it wont be very user-friendly if they have to give their devices a satic ip, especially since they may not even know what an ip is. Thats why its important to try and keep DHCP on all routers." That makes absolutely no sense. It's one LAN.
Jun
15
comment Cascade 2 routers with dhcp
"The second issue is I'd like both routers, which also provide wireless, to have a shared SSID so that moving from one part of the house to the other doesnt mean having to switch SSID's or devices flipping back and fourth on different SSID's." Why is that an "issue"? If you want them to have the same SSID, just set the same SSID on them both. What's the issue exactly?
Jun
15
comment Cascade 2 routers with dhcp
"I still need DHCP on both routers." Why? You don't explain what your issue is.
Jun
15
comment Distributing Internet equally among several users
"So I want to distribute the internet bandwidth among the clients equally which guarantees a minimum of 160Kb upto 1Mbit." That assumes that what needs to be shared is bandwidth. But people care an awful lot about latency too. A "perfectly fair" distribution of bandwidth might be perfectly fair to the people using torrenting downloaders, but a person trying to play games will be awfully unhappy.
Jun
15
comment Distributing Internet equally among several users
Server Fault is for questions about managing information technology systems in a business environment.
Jun
15
comment Switch port VLAN configuration
Why are the SFP ports in vlan 2? What are you trying to accomplish?
Jun
15
comment how to check how much memory take process
@maihabunash For one thing, you show clearly that you know that there are two kinds of memory. But then you ask about "how much memory a process holds", which suggests you don't understand that there isn't just one resource that can be described as "memory".
Jun
14
comment Point www and naked domain to other server
Yes. It can also become a CNAME record to the name of the machine that will house the main web server.
Jun
14
comment Point www and naked domain to other server
@Engerlost Yeah. Probably what you want to do is move the www subdomain. Then run a web server on the machine the domain points to just to redirect people who access the named domain to the www subdomain.