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1500 questions
277
votes
6 answers
How to reply with 200 from Nginx, without serving a file?
I have configured Apache to send back a 200 response without serving any file with this configuration line
Redirect 200 /hello
Can I do this with Nginx? I don't want to serve a file, I just want the server to respond with a 200 (I'm just logging…
Theo
- 3,025
274
votes
12 answers
How can I run Debian stable but install some packages from testing?
Say you're running a server and you don't want to upgrade to Testing (Squeeze) from Stable (Lenny) to just install a required package or two.
What's the best way of installing only certain packages from Testing?
Gareth
- 8,733
273
votes
6 answers
Why does my hostname appear with the address 127.0.1.1 rather than 127.0.0.1 in /etc/hosts?
This may be a bit of a noobish question, but I was taking a look at /etc/hosts on my new Xubuntu install and saw this:
127.0.0.1 localhost
127.0.1.1 myhostname
On most 'nixes I've used, the second line is omitted, and if I want to add my hostname…
Tom
- 3,303
272
votes
5 answers
Can you pass user/pass for HTTP Basic Authentication in URL parameters?
I believe this is not possible, but someone I know insisted that it works. I don't even know what parameters to try, and I haven't found this documented anywhere.
I tried http://myserver.com/~user=username&password=mypassword but it doesn't…
ripper234
- 6,232
272
votes
2 answers
Why is "chmod -R 777 /" destructive?
This is a Canonical Question about File Permission and Why 777 is "destructive".
I'm not asking how to fix this problem, as there are a ton of references of that already on Server Fault (reinstall OS). Why does it do anything destructive at…
samwise
- 2,423
271
votes
6 answers
Kubernetes stuck on ContainerCreating
A pod in my Kubernetes cluster is stuck on "ContainerCreating" after running a create. How do I see logs for this operation in order to diagnose why it is stuck? kubectl logs doesn't seem to work since the container needs to be in a non-pending…
four43
- 2,965
271
votes
6 answers
How to see stdout of ansible commands?
How do I see stdout for ansible-playbook commands? -v only shows ansible output, not the individual commands. It would be great if I could figure out how to do this immediately, so if something fails or hangs I can see why.
e.g.
- name: print to…
QuinnBaetz
- 2,819
271
votes
15 answers
I've inherited a rat's nest of cabling. What now?
You know, you see pictures like below and sort of chuckle until you actually have to deal with it.
I have just inherited something that looks like the picture below. The culture of the organization does not tolerate down time very well, yet I have…
Chad Harrison
- 7,090
267
votes
8 answers
Can anyone explain precisely what IOWait is?
As much as I have read about iowait, it is still mystery to me.
I know it's the time spent by the CPU waiting for a IO operations to complete, but what kind of IO operations precisely? What I am also not sure, is why it so important? Can't the CPU…
user3903
266
votes
3 answers
How to include multiple domains in an spf TXT Record
I am looking to setup a TXT spf record that has 2 included domains... individually:
v=spf1 include:_spf.google.com ~all
and
v=spf1 include:otherdomain.com ~all
What is the proper way of combining them into a single item?
tgriesser
- 3,052
265
votes
12 answers
Docker Container time & timezone (will not reflect changes)
Where do Docker containers get their time information? I've created some containers from the basic ubuntu:trusty image, and when I run it and request 'date', I get UTC time.
For awhile I got around this by doing the following in my Dockerfile:
RUN…
Chockomonkey
- 2,793
261
votes
7 answers
What’s the point in having “www” in a URL?
Other than for historical reasons, is there is reason to have “www” in a URL?
Should I create a permanent redirect from www.xyz.com to xyz.com, or from xyz.com to www.xyz.com? Which one would you suggest and why?
Quintin Par
- 4,493
260
votes
17 answers
df in linux not showing correct free space after file removal
I have file servers which are used to store files. Files might reside there for a week, or for a year. Unfortunately, when I remove files from the server, df command doesn't reflect the freed up space. So eventually, the server gets filled up (df…
user11350
260
votes
10 answers
When does `cron.daily` run?
When do entries in cron.daily (and .weekly and .hourly) run, and is it configurable?
I haven't found a definitive answer to this, and am hoping there is one.
I'm running RHEL5 and CentOS 4, but for other distros/platforms would be great, too.
warren
- 19,297
258
votes
7 answers
How can I find out what Active Directory groups I'm a member of?
I'm running a Windows XP desktop in a corporate environment. How can I find out which Active Directory groups I belong to?
chris
- 4,073