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1500 questions
81
votes
9 answers
How to restart Nginx on Mac OS X?
I just installed Nginx on Mac OS X (thanks http://www.kevinworthington.com/nginx-mac-os-snow-leopard-2-minutes/), but how do I restart Nginx on Mac OS X?
Thanks!
Laura Brown
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81
votes
9 answers
How to make scp copy hidden files?
I often use SCP to copy files around - particularly web-related files. The problem is that whenever I do this, I can't get my command to copy hidden files (eg, .htaccess).
I typically invoke this:
scp -rp src/ user@server:dest/
This doesn't copy…
rascher
- 1,118
- 3
- 13
- 14
81
votes
9 answers
Dump a linux process's memory to file
Is it possible to dump the current memory allocated for a process (by PID) to a file? Or read it somehow?
Fragsworth
- 1,181
- 2
- 12
- 14
81
votes
3 answers
What does * * * * * (five asterisks) in a cron file mean?
The first noncomment line in a legacy crontab file begins with five asterisks:
* * * * * ([a_command]) >/dev/null 2>&1
The authors are gone, so I do not know their intent. What does all-wildcards mean to (Solaris 8) cron? The betting here is…
Thomas L Holaday
- 1,353
- 4
- 16
- 19
81
votes
10 answers
How to check the physical status of an ethernet port in Linux?
I want to check if a specified ethX is physically up or down. How do I do that with the command line?
Jader Dias
- 4,705
- 19
- 50
- 51
81
votes
8 answers
Is it possible to use rsync over sftp (without an ssh shell)?
Rsync over ssh, works great every time.
However, trying to rsync to a host which allows only sftp logins, but not ssh logins, provides the following error:
rsync -av /source ssh user@remotehost:/target/
protocol version mismatch -- is your
shell…
Tom Feiner
- 17,578
- 8
- 30
- 24
80
votes
8 answers
What should I do when I got the KEYEXPIRED error message after an apt-get update?
While updating my packages on a debian based system by a
sudo apt-get update
I've got that error message :
Reading package lists... Done
W: GPG error: ftp://ftp.fr.debian.org stable/non-US Release:
The following signatures were invalid:…
paulgreg
- 4,154
- 6
- 33
- 32
80
votes
11 answers
Multiple data centers and HTTP traffic: DNS Round Robin is the ONLY way to assure instant fail-over?
Multiple A records pointing to the same domain seem to be used almost exclusively to implement DNS Round Robin as a cheap load balancing technique.
The usual warning against DNS RR is that it is not good for high availability. When 1 IP goes down…
Valentino Miazzo
- 1,103
- 1
- 8
- 10
80
votes
5 answers
Does each server behind a load balancer need their own SSL certificate?
If you have 5 web servers behind a load balancer (such as haproxy) and they are serving up content for the same domain, do you need SSL certificates for all the servers, or can you use the same certificate on each server?
I know you can put all SSL…
Derek Gathright
- 911
- 1
- 7
- 5
80
votes
6 answers
How to test if my server is vulnerable to the ShellShock bug?
How can I ensure my Bash installation is not vulnerable to the ShellShock bug anymore after the updates?
gtirloni
- 5,746
- 3
- 25
- 52
80
votes
6 answers
Centos 7 save iptables settings
Problem: iptables resets to default settings after server reboot.
I'm trying to set rule like this:
iptables -I INPUT -p tcp --dport 3000 -j ACCEPT
after that I do:
service iptables save
and it writes back something like this
iptables: Saving…
user1463822
- 903
- 1
- 7
- 4
80
votes
6 answers
Make a Docker application write to stdout
I'm deploying a 3rd-party application in compliance with the 12 factor advisory, and one of the points tell that application logs should be printed to stdout/stderr: then clustering software can collect it.
However, the application can only write to…
kolypto
- 11,058
- 12
- 54
- 66
80
votes
1 answer
Nginx - Meaning of the ~ (tilde) in the location block of the nginx.conf?
What is the meaning of the tilde after the location block in the nginx configuration?
for example
location ~ ^/download/(.*)$ {
alias /home/website/files/$1;
}
What is the difference between with and without the "~" ?
mahen3d
- 4,342
- 14
- 36
- 57
80
votes
5 answers
Nginx redirect one path to another
I'm sure this has been asked before, but I can't find a solution that works.
A website has switched CMS services, but has the same domain, how do I set up an nginx rewrite for a single page?
E.g.
Old…
SteveEdson
- 1,539
- 3
- 12
- 23
80
votes
2 answers
Why is rsync skipping the main directory?
I'm trying to use rync locally (on a windows machine) to a remote server (my osx box) in order to test a remote deploy build script. I've done rsync before just fine between 2 linux servers, but I'm having problems now. Here is the output:
$ rsync…
chrisan
- 957
- 1
- 8
- 12