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1500 questions
48
votes
9 answers
Assign multiple IPs to 1 Entry in hosts file
I have a web sever that connects to an internal database through a VPN. There are 2 IPs (primary and secondary) to the database from the web server. How can I setup my /etc/hosts file so that if the primary IP is not available then the secondary…
Mike T
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48
votes
6 answers
Permanent block of IP after n retries using fail2ban
I have a fail2ban configured like below:
block the ip after 3 failed attempts
release the IP after 300 sec timeout
This works perfectly and I want to keep it this way such that a valid user gets a chance to retry the login after the timeout. Now,…
BTR Naidu
- 627
- 1
- 7
- 14
48
votes
34 answers
How are you documenting your work, processes and environment?
Are you using a wiki format? If so, which product? (MediaWiki, Confluence, Sharepoint etc.)
Have you create a knowledge base? (Problem/solution-oriented short documents.)
What challenges do you find with creating documentation that works, so you…
user1804
48
votes
2 answers
How can I see the contents of the mail whose ID I get from mailq command?
I used mailq command and I got a line like for example:
A705238B4C 603953 Wed May 23 11:09:58 [email protected]
So, now I'm wondering is there a way where I can "read" an actual content of the mail by its id A705238B4C
Nikola
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48
votes
2 answers
How does Apache merge multiple matching Location sections
I'm working on some basic apache configuration, but I don't understand precisely how apache merges different sections when several of them match an incoming requests URL. The apache documentation in its "How the sections are merged"…
LordOfThePigs
- 717
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- 7
- 7
48
votes
8 answers
Delete a iptables chain with its all rules
I have a chain appended with many rules like:
> :i_XXXXX_i - [0:0]
> -A INPUT -s 282.202.203.83/32 -j i_XXXXX_i
> -A INPUT -s 222.202.62.253/32 -j i_XXXXX_i
> -A INPUT -s 222.202.60.62/32 -j i_XXXXX_i
> -A INPUT -s 224.93.27.235/32 -j i_XXXXX_i…
timy
- 699
- 1
- 7
- 14
48
votes
8 answers
Remove path from find command output
I have a bash script for deploying code from a beta environment to a production environment but currently I have to add the list of files to a txt file manaully and sometime I miss some. Basically my deployment script cat/loops copying the files…
Mikey1980
- 751
- 1
- 8
- 12
48
votes
6 answers
How do I view a file's hard links in Windows?
I've found a description of hard links and junctions in Windows, however I'd like to know ,from the Windows UI or command prompt, how I can view the hard links of a particular file or folder?
John K
- 1,753
- 3
- 16
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48
votes
5 answers
How to disable Nginx logging?
I have the following in config file
server {
listen 80;
server_name _;
access_log /var/log/nginx/access.log main;
...
server {
listen 80;
server_name example.com
access_log off;
error_log off;
But it…
user965363
- 743
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- 11
48
votes
1 answer
Chef best Practices/Questions
I use and love Puppet. I moved to a new company and they are adopting Chef. So I'm trying to learn Chef but am having a hard time piecing it all together because I still think in Puppet =)
These are my questions:
Is it better to setup roles in…
rizen
- 503
- 1
- 5
- 4
48
votes
5 answers
How to export result of a MySQL query using phpMyAdmin 3.4.3?
I've got a 30K row table
When I run a long, 50-line query on that table, a GROUP function reduces the number of rows to 7K
I want to export the grouped 7K rows as a new table, or save them as a
CSV
When I attempt to export, instead of getting the…
grape
- 481
- 1
- 4
- 3
48
votes
4 answers
How does SSO with Active Directory work whereby users are transparently logged in to an intranet web app?
I'm told that it's possible to make a web application that does not require a login. The user logs in to Windows, which authenticates via an Active Directory (LDAP) Lookup. Then, they should be able to go to my webapp and never see a login prompt.…
blak3r
- 731
- 1
- 11
- 16
48
votes
5 answers
Confidential Documentation and the role of the Sysadmin
I've got another interesting one.
I'm about to backup and reinstall the HR Administrator's PC. I suspect that the fastest way to do this is to use the Windows 7 Transfer tool, and create a backup of the entire Users and Settings profiles on the…
Tom O'Connor
- 27,480
- 10
- 73
- 148
48
votes
8 answers
Why can't I connect to Amazon RDS after setting it up?
So, I just created the Amazon RDS account.
And I started an instance of database.
The "endpoint" is:
abcw3n-prod.cbmbuiv8aakk.us-east-1.rds.amazonaws.com
Great! Now I try to connect to it from one of my other EC2 instances.
mysql -uUSER -pPASS…
Alex
- 8,471
- 26
- 75
- 99
48
votes
7 answers
How to find other end of unix socket connection?
I have a process (dbus-daemon) which has many open connection over UNIX sockets. One of these connections is fd #36:
=$ ps uw -p 23284
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
depesz 23284 0.0 0.0 24680 1772 ? …
user13185