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1500 questions
45
votes
5 answers
Is there a linux terminal command that lets you see the amount of data coming in to your tcp connections in real time?
It would be something similar to top, where you see your cpu processes in real time. I'm not looking for a GUI like Wireshark to do it.
user342580
- 561
45
votes
9 answers
su not working on mac os x?
I get this:
Macintosh:8.4 TAmoyal$ su
Password:
su: Sorry
Macintosh:8.4 TAmoyal$
I typed in the password I use for sudo. Why won't this work?
Thanks!
Tony
- 4,253
45
votes
6 answers
Phishing site uses subdomain that I never registered
I recently received the following message from Google Webmaster Tools:
Dear site owner or webmaster of http://gotgenes.com/,
[...]
Below are one or more example URLs on your site which may be part of a
phishing…
gotgenes
- 553
45
votes
17 answers
What good system administrator podcasts are out there?
The similar question on Stack Overflow,
What good technology podcasts are out there?, has lots of answers focused on software development.
What podcasts do you listen to for learning about the following?
Information technology trends
Network…
Zoredache
- 131,987
45
votes
2 answers
Effects of configuring vm.overcommit_memory
My VPS web server running on CentOS 5.4 (Linux kernel 2.6.16.33-xenU) irregularly (like once a month give or take a few weeks) becomes unresponsive due to oom-killer kicking in. Monitoring of the server shows that it doesn't normally run out of…
dunxd
- 9,704
45
votes
4 answers
putty and screen and scroll-back buffer
When I use screen inside a putty session, I can't seem to use the scrollback buffer of putty to look at whatever just scrolled off the screen. Instead, I just see what was happening in the putty session just prior to my running screen.
What am I…
chris
- 11,964
45
votes
10 answers
How should I burn in hard drives?
Google did a very thorough study on hard drive failures which found that a significant portion of hard drives fail within the first 3 months of heavy usage.
My coworkers and I are thinking we could implement a burn-in process for all our new hard…
Phil
- 1,013
45
votes
4 answers
apt-get update/upgrade list without changing anything
I would like to view what packages are available for update/upgrade without actually changing any files becuase there are some packages I wouldn't like to update. Would it then be possible to apt-get update with exceptions.
John Magnolia
- 1,763
45
votes
6 answers
Configuring Apache2 to proxy WebSocket?
The WebSocket protocol is an extension of the HTTP protocol. However, the proxy module of Apache2 does not seem to know about it, and throws away crucial headers, converting the call to a standard HTTP call.
Is there a way to make Apache2 either (1)…
Blixt
- 595
45
votes
1 answer
nginx name-based virtual hosts on IPv6
I have an nginx server serving up nearly half a dozen different websites. It's running on a Linode that just got IPv6 native support (Dallas data center), and I'm trying to configure most of my sites for dual-stack operation. I got the first one up…
Kromey
- 3,681
45
votes
9 answers
How do you setup ssh to authenticate using keys instead of a username / password?
How do you setup ssh to authenticate a user using keys instead of a username / password?
ScArcher2
- 653
45
votes
2 answers
Understanding a Postfix log file entry
We have a Postfix hub and I'm trying to better understand the information in the mail.log file. I use tools like qshape, pflogsumm.pl and amavis-logwatch to summarize the log files, but I have still have questions about some of the elements of the…
KodeTitan
- 901
45
votes
4 answers
Run command in bash without save in history
How to run command in bash without saving it in history?
hiemye
- 779
45
votes
5 answers
Overcoming maximum file path length restrictions in Windows
One of our customers habitually use very long path names (several nested folders, with long names) and we routinely encounter "user education issues" in order to shorten the path to less than 260 characters.
Is there a technical solution available,…
45
votes
9 answers
Is it safe to use consumer MLC SSDs in a server?
We (and by we I mean Jeff) are looking into the possibility of using Consumer MLC SSD disks in our backup data center.
We want to try to keep costs down and usable space up - so the Intel X25-E's are pretty much out at about 700$ each and 64GB of…
Zypher
- 37,551