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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Simple colourized JSON formatting for BASH

Leave out pygmentize or `pip install pygments` first.

convert unixtime to human-readable

Set laptop display brightness

Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Write a listing of all directories and files on the computer to a compressed file.

This command is meant to be used to make a lightweight backup, for when you want to know which files might be missing or changed, but you don't care about their contents (because you have some way to recover them). Explanation of parts: "ls -RFal /" lists all files in and below the root directory, along with their permissions and some other metadata. I think sudo is necessary to allow ls to read the metadata of certain files. "| gzip" compresses the result, from 177 MB to 16 MB in my case. "> all_files_list.txt.gz" saves the result to a file in the current directory called all_files_list.txt.gz. This name can be changed, of course.

let the cow suggest some commit messages for you

Netstat Connection Check

This command does a tally of concurrent active connections from single IPs and prints out those IPs that have the most active concurrent connections. VERY useful in determining the source of a DoS or DDoS attack.

converting horizontal line to vertical line

Extracting frames from a video as jpeg files

This command extracts 10 seconds worth of frames, starting from 00:15:45 position, from filename.avi and stores them into out_frames folder as jpeg files. Subtitles are turned off with -sid 999 option.

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)

Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

Save xkcd to a pdf with captions

Saves to a PDF with title and alt text of comic. As asked for on http://bbs.archlinux.org/viewtopic.php?id=91100 Change xkcd.com to dynamic.xkcd.com/comics/random for a random comic.

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Commands tagged centos (10)

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