Commands tagged centos sorted by votes

Commands tagged centos (10)

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IP addresses connected to port 80

IP addresses and number of connections connected to port 80. Show Sample Output
This is sample output - yours may be different.
```
# netstat -tn 2>/dev/null | grep ':80 ' | awk '{print $5}' |sed -e 's/::ffff://' | cut -f1 -d: | sort | uniq -c | sort -rn | head
     67 242.127.82.189
     11 72.128.78.251
     11 92.126.132.28
      8 77.212.78.54
      4 66.269.8.217
      2 66.249.78.47
      1 84.85.188.132
      1 66.249.78.214
      1 186.249.79.17
      1 187.125.111.68
```
2

netstat -tn 2>/dev/null | grep ':80 ' | awk '{print $5}' |sed -e 's/::ffff://' | cut -f1 -d: | sort | uniq -c | sort -rn | head

copocaneta · 2014-03-12 12:43:07 0
yum -q list updates | tail -n+2
This is sample output - yours may be different.
1

List upgrade-able packages on Redhat

phunehehe · 2013-01-14 11:51:54 0
Number of connections to domains on a cPanel server
This is sample output - yours may be different.
1

/usr/bin/lynx -dump -width 500 http://127.0.0.1/whm-server-status | awk 'BEGIN { FS = " " } ; { print $12 }' | sed '/^$/d' | sort | uniq -c | sort -n

copocaneta · 2014-03-12 12:38:24 0
Fix SELinux problem with Postfix on Centos
This is sample output - yours may be different.
0

grep postfix /var/log/messages | audit2allow -M mypolicy

phunehehe · 2012-12-06 09:19:25 0

List the busiest script running on a cPanel server (showing domain)

List the busiest scripts/files running on a cPanel server with domain showing (column $12). Show Sample Output

/usr/bin/lynx -dump -width 500 http://127.0.0.1/whm-server-status | grep GET | awk '{print $12 $14}' | sort | uniq -c | sort -rn | head

copocaneta · 2014-03-12 13:24:40 0

List Server IP address

I just use this to see my ip on the server I'm working on Show Sample Output
This is sample output - yours may be different.
```
addr:xxx.xxx.xxx.xxx
addr:
```
0

ifconfig eth0 | grep inet | awk '{ print $2 }'

smorg · 2014-07-23 20:43:15 0
iptables for mac

-A INPUT -p udp -m udp --dport 10000:66000 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT -A INPUT -p udp -m udp --dport 5060 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT -A INPUT -p tcp --dport 22 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT Show Sample Output
This is sample output - yours may be different.
```
-A INPUT -p udp -m udp --dport 10000:66000 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT
-A INPUT -p udp -m udp --dport 5060 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT
-A INPUT -p tcp --dport 22 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT
```
0

-A INPUT -p tcp --dport 22 -m mac --mac-source 3E:D7:88:A6:66:8E -j ACCEPT

erez83 · 2015-09-17 14:51:47 2
ssh-keygen -b 4048 -t rsa -C "comment"

Generating ssh key then need to copy public key in to /root/.ssh/authorized_keys
This is sample output - yours may be different.
0

ssh-keygen -b 4048 -t rsa -C "comment"

erez83 · 2016-02-03 09:37:39 1
centos list directories sorted by size

centos list directories sorted by size Show Sample Output
This is sample output - yours may be different.
```
du -h --max-depth=1 /home/ | sort -n
```
-1

du -h --max-depth=1 /home/ | sort -n

erez83 · 2015-09-18 05:59:55 1
Have a random

To install on centos 6.2 for Centos auto accept: yum install fortune* -y yum install cowsay* -y Removed the -f command as I dont know how, but it works without it. Almost the same but one folder higher =).
This is sample output - yours may be different.
-2

fortune | cowsay $(ls/usr/share/cowsay | shuf -n1)

cablegunmaster · 2014-10-23 10:09:44 1

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Get rid from a blank display without reboot

Killall5 will kill your session and redirect to login screen. -Very useful when suffering display problems. -Can use F1-F6 -Need to login in the particular console if not already

Console clock

Shows a simple clock in the console -t param removes the watch header Ctrl-c to exit

Show max lengths of all fields in a pipe delimited file with header row

access to last touched or created file with arrow_up_key immediately after displaying the file list

Display recursive file list (newest file displayed at the end) and be free to access last file in the list simply by pressing arrow_up_key i.e. open it with joe editor. BTW IMHO the list of files with newest files at the end is often more informative. Put this 'lsa' function somewhere in your .bashrc and issue $ . ~/.bashrc or $ source ~/.bashrc to have access to the 'lsa' command immediately. . (the function appends command "joe last_file_in_the_list" at the end of command history)

Insert the last argument of the previous command

for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls

Watch a movie in linux without the X windows system.

Unzip 25 zip files files at once

Search some text from all files inside a directory

Capture screen and mic input using FFmpeg and ALSA

Yet another x11grab using ffmpeg. I also added mic input to the capturing video stream using alsa. Yet I need to find out how to capture audio which is currently playing.

Get the IP address of a machine. Just the IP, no junk.

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Commands tagged centos (10)

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