Most Popular
1500 questions
49
votes
23 answers
How do I destroy a hard disk?
I have an old hard disk (Maxtor 250Gb) from about 3 years ago that started giving errors and now sits in a draw in my desk. It has some confidential data on it but it's unlikely that it can be read because the disk started to go bad. However, before…
Guy
- 1,859
49
votes
7 answers
How can I prevent a DDOS attack on Amazon EC2?
One of the servers I use is hosted on the Amazon EC2 cloud. Every few months we appear to have a DDOS attack on this sever. This slows the server down incredibly. After around 30 minutes, and sometimes a reboot later, everything is back to…
cwd
- 2,793
- 10
- 35
- 49
49
votes
9 answers
Get a history of CPU/memory usage
Is there someway to record Task Managers info about CPU and memory usage to examine later? Or an equivalent tool?
foobarfuzzbizz
- 2,113
49
votes
6 answers
How do I view a file's hard links in Windows?
I've found a description of hard links and junctions in Windows, however I'd like to know ,from the Windows UI or command prompt, how I can view the hard links of a particular file or folder?
John K
- 1,793
49
votes
2 answers
Serve http (port 80) and https (port 443) on same VirtualHost
I need to setup my VirtualHost on Apache to serve on both http and https (using standard ports)
If I enable the SSL Engine (as per below) - I get an error when on port 80.
The reason is, parts of the site need to be SSL but other parts don't. How…
kron
- 765
49
votes
2 answers
How to quick and easy remove part of an URL in Nginx with HttpRewriteModule?
I know about the HttpRewriteModule, but I don't really know how to handle regex and I would need to redirect all URLs within a certain directory to another, specifically:
From: example.com/component/tag/whatever
To: example.com/tag/whatever
Could…
javipas
- 1,372
49
votes
7 answers
What is the best Linux filesystem for MySQL (InnoDB)?
I tried to look for benchmark on the performances of various filesystems with MySQL InnoDB but couldn't find any.
My database workload is the typical web-based OLTP, about 90% read, 10% write. Random IO.
Among popular filesystems such as ext3, ext4,…
Continuation
- 3,150
49
votes
5 answers
How do I request a new IP address from my DHCP server using Ubuntu Server?
I know there is a simple command for this, but how do I tell my Ubuntu server instance to request a new IP address from the DHCP server on eth0?
Heat Miser
- 615
49
votes
2 answers
Splunk is fantastically expensive: What are the alternatives?
Possible Duplicate:
Alternatives to Splunk?
This has been discussed, but it has been several months, so it may be time to revisit it:
Earlier discussion RE Splunk alternatives
For the record, Splunk rocks. But the pricing is simply beyond what we…
49
votes
6 answers
Permission denied while reading upstream
We deployed our Rails application on Nginx and Passenger. Intermittently, pages of application get loaded partially. There is no error in application log, but the Nginx error log shows the following:
2011/02/14 05:49:34 [crit] 25389#0: *645 open()…
user68613
- 613
49
votes
9 answers
How fast is 127.0.0.1?
I wonder if it is tied to my NIC at all or if the OS or driver intercepts and immediately returns data sent to the loopback address?
Does the signal actually travel to my NIC then the NIC returns it?
user55029
49
votes
6 answers
How do you avoid network conflict with VPN internal networks?
While there's a wide variety of private non-routable networks across 192.168/16 or even 10/8, sometimes in being thoughtful of potential conflict, it still occurs. For example, I set up an installation OpenVPN once with the internal VPN network on…
jtimberman
- 7,665
49
votes
10 answers
Linux (mv or cp) specific files from a text list of files?
I have a directory of many files, something like 50,000 pdf's and other files on a server. I need to move specific ones to another directory. I can generate a list of the files that need to be moved either in csv or any other text format.
What I…
Jestep
- 663
- 1
- 7
- 11
49
votes
8 answers
How do I list all superusers?
On a linux box, how do I list all users that possess identical privilege to the superuser (and even better, all users in general along with if they are able to escalate their privilege to that level or not)?
Eric
- 493
49
votes
7 answers
Disable password complexity rule in Active Directory
Where do I go to disable the password complexity policy for the domain?
I've logged onto the domain controller (Windows Server 2008) and found the option in local policies which is of course locked from any changes. However I can't find the same…
Daniel Revell
- 701