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1500 questions
44
votes
1 answer

How to resolve the gunicorn critical worker timeout error?

I have used nginx and gunicorn to host my website in two servers, Both server have same versions of packages and website is successfully hosted, But in one of my server gunicorn always gets timeout and I get error [CRITICAL]Worker Timeout Booting…
s.m
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44
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7 answers

What is a good solution to encrypt some files in unix?

I am looking for a utility to encrypt certain directories in Linux. I am not looking for any full disk encryption services, but simply to encrypt a few directories for the purposes of storing files in the cloud. Once retrieving them, I should have…
Peter
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44
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4 answers

What is the ibdata1 file in my /var/lib/mysql directory?

Logging in to my Webmin control panel, I noticed that virtually all of my disk space is full. I searched for the ten largest files/ directories on my system and found that a file called ibdata1 is taking up around 94GB of space. It resides in my…
James
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44
votes
2 answers

Damaged /vmlinuz and /initrd.img symbolic links after Kernel uninstall

OS: Ubuntu 8.04 LTS Server Edition We just rolled back an kernel update using the following command: sudo apt-get remove linux-image-2.6.24-24-server The uninstallation was successful, but it had the following message before apt-get exited: The…
maxyfc
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44
votes
4 answers

OpenVPN performance: how many concurrent clients are possible?

I am evaluating a system for a client where many OpenVPN clients connect to a OpenVPN server. "Many" means 50000 - 1000000. Why do I do that? The clients are distributed embedded systems, each sitting behind the system owners dsl router. The server…
Steffen Müller
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44
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
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44
votes
6 answers

Postgres error message: FATAL: Ident authentication failed for user "..."

Say you're seeing this message: FATAL: Ident authentication failed for user "..." What are the causes of this error message?
Steve Bennett
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44
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8 answers

create 'virtual file' from bash command output?

I wonder if there is a way to create a 'virtual file' from a bash output. Example: Let's say I want to email the output of mysqldump as an attachment to an external email address. I can use Mutt to do so. The mutt option I need to use is -a
ppbitb
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44
votes
2 answers

GPG - why am I encrypting with subkey instead of primary key?

When encrypting a file to send to a collaborator, I see this message: gpg: using subkey XXXX instead of primary key YYYY Why would that be? I've noticed that when they send me an encrypted file, it also appears to be encrypted towards my subkey…
Michael H.
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44
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6 answers

tell yum to ignore a single dependency

I'm trying to install winswitch on CentOs 6. It requires nxagent. But in centos, the package name is nx. Is there a way to tell yum to skip checking the nxagent dependency (I installed nx already)? Specifying --skip-broken skips the whole thing.
IttayD
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44
votes
8 answers

ls hangs for a certain directory

There is a particular directory (/var/www), that when I run ls (with or without some options), the command hangs and never completes. There is only about 10-15 files and directories in /var/www. Mostly just text files. Here is some investigative…
Jake Wilson
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44
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
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44
votes
4 answers

Create Unix Named Socket from the Command Line

Is there a command similar to mkfifo but for domain sockets?
benmmurphy
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44
votes
1 answer

What is the meaning of an equal sign = or == at the end of a SSH public key?

I just noticed that most of the ssh pubkeys in my authorized_keys end on == or = E.g. ssh-rsa…
Lukas Loesche
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44
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5 answers

Why can't I reach my Amazon EC2 instance via its Elastic IP address?

The server works fine via the Amazon assigned DNS entry, but I cannot reach it (using a browser) via the Elastic IP address Amazon assigned the box. Ping does not work either. I am trying to confirm it is reachable before I add the IP address to my…
Guido Anselmi
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