Commands tagged socat sorted by votes

Commands tagged socat (9)

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Tail a log-file over the network

it also works with the chrome browser. The alternative with tail and nc doesn't
This is sample output - yours may be different.
6

socat -u FILE:/var/log/syslog,ignoreeof TCP4-LISTEN:12345,fork,reuseaddr

ichbins · 2013-02-18 13:36:01 4

Create a single-use TCP proxy with debug output to stderr

or you can add "-x" to get a typical hexdump like output Show Sample Output

socat -v tcp4-l:<port> tcp4:<host>:<port>

sitaram · 2009-09-25 17:10:16 4

Serial console to a Vmware VM

Create a serial console with "socket (named pipe)" of "/tmp/socket", "from:server, to:virtual machine" in vmware player, etc.. gui. Run the above command after you have booted the guest OS (which should also be configured for serial console).
This is sample output - yours may be different.
1

socat unix-connect:/tmp/socket stdio,echo=0,raw

mhs · 2012-12-19 07:58:09 9
Use socat to emulate an SMTP mail SERVER

Lots of scripts show you how to use socat to send an email to an SMTP server; this command actually emulates an SMTP server! It assumes the client is only sending to one recipient, and it's not at all smart, but it'll capture the email into a log file and the client will stop retrying. I used this to diagnose what emails were being sent by cron and subsequently discarded, but you can use it for all sorts of things. Show Sample Output
This is sample output - yours may be different.
```
EHLO host.example.com
MAIL FROM:<root@example.com>
RCPT TO:<root@example.com>
DATA
Received: by host.example.com (Postfix, from userid 1234)
	id 955; Wed, 26 Nov 2014 12:56:03 -0800 (PST)
From: root@example.com (Cron Daemon)
To: root@example.com
Subject: Cron <root@example.com>    
Content-Type: text/plain; charset=UTF-8
Message-Id: <2014112.57348E5@host.example.com>
Date: Wed, 26 Nov 2014 12:56:01 -0800 (PST)

foobar: cannot remove user's mustache.
.
QUIT
```
1

socat TCP4-LISTEN:25,fork EXEC:'bash -c \"echo 220;sleep 1;echo 250;sleep 1;echo 250;sleep 1;echo 250;sleep 1;echo 354;sleep 1;echo 250; timeout 5 cat >> /tmp/socat.log\"'

pfudd · 2014-11-26 21:14:05 15
make a central proxy access from where it's high speed link available.

Say I have configured a fully optimized squid server A listen on [xxxx:xxxx::xxxx]:3128, within ISP_foo. But when I was with ISP_bar , I can not access the proxy with full speed due to ISP's limit upon the normal clients among different ISP. If you are curious where the ridiculous ISPs are, I'll tell you the truth --that's CHINA. However, servers' network connection is not enslaved to that limitation, especially with IPv6. So, I can do this socat linefu on a server B of ISP_bar. me >> B(ISP_bar)>> A(ISP_foo)
This is sample output - yours may be different.
0

socat TCP4-LISTEN:3128,reuseaddr,fork TCP6:[xxxx:xxxx::xxxx]:3128

kiiwii · 2012-06-07 04:35:24 4
UDP over SSH

Forward local UDP port to remotetarget via ssh.
This is sample output - yours may be different.
0

socat udp-listen:1611 system:'ssh remoteserver "socat stdio udp-connect:remotetarget:161"'

kbo · 2013-07-02 15:08:14 6
Get readline support for the sqlplus command.
This is sample output - yours may be different.
0

socat READLINE,history=$HOME/.sqlplus_history EXEC:'sqlplus64\ USER\/PASS@HOST\:PORT\/SID',pty,setsid,ctty

vesperto · 2018-02-01 16:48:27 24
Use socat to wrap around your pty to enter the password.

You should really use keys. Really. I'm serious. But if you have to add your key, change password etc. for a long list of servers, this might help.
This is sample output - yours may be different.
-1

(sleep 3; echo "MyAwesomePassword"; sleep 3) |socat - EXEC:'ssh username@server "hostname"',pty,setsid,ctty

TommyBotten · 2011-08-24 14:13:18 5
Get readline support for the sqlplus command.

Perhaps a bit of a niche, but if you've even been frustrated by Oracles sqlplus command line tool for not supporting readline - have no fear. Socat is here to help you.
This is sample output - yours may be different.
-1

socat READLINE EXEC:'sqlplus',pty,setsid,ctty

TommyBotten · 2011-08-24 14:17:41 5

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Convert decimal numbers to binary

Convert some decimal numbers to binary numbers. You could also build a general base-converter: $ function convBase { echo "ibase=$1; obase=$2; $3" | bc; } then you could write $ function decToBun { convBase 10 2 $1; }

Displays the version of the Adobe Flash plugin installed

This is for Debian, simply change the path if your Flash plugin is installed elsewhere.

Report information about executable launched on system

Aureport is a tool for displaying auditd system log. -x options cause to display launched executable on system. Aureport work with auditd so auditd must be installed an running on a system. Tested on CentOS / Debian

make directory with current date

Ultimate current directory usage command

An NCurses version of the famous old 'du' unix command

Execute a command at a given time

read squid logs with human-readable timestamp

Monitor open connections for httpd including listen, count and sort it per IP

It's not my code, but I found it useful to know how many open connections per request I have on a machine to debug connections without opening another http connection for it. You can also decide to sort things out differently then the way it appears in here.

Finds all files from / on down over specified size.

Very useful for finding all files over a specified size, such as out of control log files chewing up all available disk space. Fedora Core x specific version.

Embed next line on the end of current line using sed

N: On the current line, sed will display it on pattern space, plus a \n (new line); but s/\n//: Will get rid of new line displayed on pattern space, joining the current line's end with the start of the next line Useful in scripts.

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Commands tagged socat (9)

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