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1d
comment Kernel fails to assign memory in any Linux Distro
Is this a 64-bit kernel? Is memory remapping set to on in your BIOS?
2d
comment Why do my servers (Digital Ocean) attack other servers with a default setup?
Are you running a mail server? Did you change any of its settings? Who has access to your SOCKS5 proxy? Are you sure none of those people are spammers?
Apr
27
comment Why is my scaling_max_freq stuck at 1GHz (on a Core Duo processor)
Hmm, then it's probably something else. If the battery is physically present, detected, and holds charge, that should be sufficient.
Apr
27
comment Why is my scaling_max_freq stuck at 1GHz (on a Core Duo processor)
The battery is probably dead. You can't exceed 1GHz without a battery. Confirm that the battery is dead and I'll post a full explanation.
Apr
16
comment can not ping any hostname
Try dig @8.8.8.8 google.com and tell us what output you get.
Apr
12
comment Why drop caches in Linux?
@DanPritts That's not an imperfection. That's a huge win. That way, if you do run into memory pressure, you don't have to write out pages then, you can just discard them.
Apr
11
comment Why drop caches in Linux?
@DanPritts That's pretty depressing. Even more depressing, they don't explain what the "issue" is that they claim it deals with.
Apr
4
comment Write-only git repository?
See this link for an implementation using write-only memory.
Apr
1
comment Is there a way to know a visitor is coming from a Starbucks?
How will knowing what IP addresses are assigned to Starbucks help you identify Starbucks customers?
Mar
28
comment Need 80 422/485 serial ports
I would probably use these -- RocketPort 32-port PCIe serial adapters. You will also need (or will need to make) fan out cables.
Mar
26
answered Netgear Switches GS748Tv4 and v5 ports go down and up and Spanning Tree Topology Change
Mar
26
comment Slow RAID & system performance on large file write
Replicate the problem using a strictly local disk I/O benchmark.
Mar
23
comment Netgear Switches GS748Tv4 and v5 ports go down and up and Spanning Tree Topology Change
You should never force 1Gbps unless you have know precisely what you are doing and have a very unusual situation. You should always use auto-negotiation. My guess is that whoever did your cat6 wiring messed up the mapping of pins to pairs. Carefully inspect the order of wires and make sure it's either 568A or 568B consistent throughout, straight through. 568B is preferred.
Mar
22
comment Netgear Switches GS748Tv4 and v5 ports go down and up and Spanning Tree Topology Change
What does port g30 connect to?
Mar
19
comment Why is this server reporting high memory usage
I have no objection to simplifications as long as they don't contain actual falsehoods. That's where I draw the line. The reason we have this particular confusion is because people have a simple, naive notion of memory that's "used" and you can't fix that with another naive notion of "used". You just recreate the problem.
Mar
18
comment Why is this server reporting high memory usage
Unfortunately, that page contains a lot of oversimplifications that are just flat out false. I really don't like linking people to it. For example, "But what do you call memory that is both used for something and available for applications?" -- that applies to all unlocked memory, even memory used by applications. So nobody would call that free. It seems to claim that even memory used by applications should be considered free because it's also available for other uses should those uses get priority, which propagates a misunderstanding as serious as the one the site is trying to address.
Mar
18
revised Why is this server reporting high memory usage
added 132 characters in body
Mar
18
answered Why is this server reporting high memory usage
Mar
17
comment Warning: Remote host identification has changed (SSH)
What does your ~/.ssh/config file say?
Mar
16
comment Can a different DNS server be used for subdomains?
If not, how could "google.com" go on a different server from "serverfault.com"? Wouldn't they both have to be on the ones that handle "com"?