Commands by antrix (1)

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Port Knocking!
Knock on ports to open a port to a service (ssh for example) and knock again to close the port. You have to install knockd. See example config file below. [options] logfile = /var/log/knockd.log [openSSH] sequence = 3000,4000,5000 seq_timeout = 5 command = /sbin/iptables -A INPUT -i eth0 -s %IP% -p tcp --dport 22 -j ACCEPT tcpflags = syn [closeSSH] sequence = 5000,4000,3000 seq_timeout = 5 command = /sbin/iptables -D INPUT -i eth0 -s %IP% -p tcp --dport 22 -j ACCEPT tcpflags = syn

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Get all these commands in a text file with description.
I tried out on my Mac, jot to generate sequence ( 0,25,50,..), you can use 'seq' if it is linux to generate numbers, need curl installed on the machine, then it rocks. @Satya

Search replace with Ansible style timestamps
$ ls httpd.conf [email protected]:43:20

list files recursively by size

list block devices
Shows all block devices in a tree with descruptions of what they are.

download newest adminer and rename to it's version accordingly
If the version already downloaded. it will not download again

Show available conversions
aliases on each line. i.e. txt2html: $recode ..HTML file.html txt to Base64: $recode ../b64 file.b64 and so on.

change exif data in all jpeg's
this takes every jpg in the current directory and changes the exif data for manufactur and model. in my case i change it to LOMO LC-A because my scanner puts his data in there :]

tcmdump check ping
capture only ping echo requests with tcpdump


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