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1500 questions
262
votes
11 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
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258
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
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257
votes
11 answers

List all DNS records in a domain using dig?

My company runs an internal DNS for mycompany.example There is a machine on the network that I need to find, but I’ve forgotten its name. If I could see a list, it would probably jog my memory. How can I list all of the domain records for…
Runcible
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257
votes
7 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…
Peter Krumins
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255
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
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254
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
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254
votes
11 answers

Is it bad to redirect http to https?

I just installed an SSL Certificate on my server. It then set up a redirect for all traffic on my domain on Port 80 to redirect it to Port 443. In other words, all my http://example.com traffic is now redirected to the appropriate…
JasonDavis
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254
votes
8 answers

How do I add Access-Control-Allow-Origin in NGINX?

How do I set the Access-Control-Allow-Origin header so I can use web-fonts from my subdomain on my main domain? Notes: You'll find examples of this and other headers for most HTTP servers in the HTML5BP Server Configs projects…
Chris McKee
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254
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
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251
votes
5 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
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251
votes
4 answers

How can I see which flags Nginx was compiled with?

How can I check what modules have been added to an nginx installation?
Nisanio
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251
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
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249
votes
14 answers

What is this very short power cable called?

I have a couple of networking components in my rack that take giant AC adapters ("power bricks") that don't fit neatly into my rackmount PDU. I have one "thingy" that is shown below, and I need to buy a few more. But I have no idea what I'm…
Portman
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247
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
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246
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
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