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 3

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 8
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 3
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 5
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 4
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 4

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Partition a sequence of disk drives for LVM with fdisk

So, I'm using a CentOS VM in VirtualBox, and created four new disks in the SCSI controller. The VM created the folders: /dev/sda /dev/sdb /dev/sdc /dev/sdd Using a 'for loop' all disks are partitioned for LVM.

List of computers not logged into in more than four weeks

concatenate avi files

concatenates avi files

Easily find latex package documentation

If the pdf/dvi/etc documentation for a latex package is already part of your local texmf tree, then texdoc will find and display it for you. If the documentation is not available on your system, it will bring up the package's webpage at CTAN to help you investigate.

Job Control

You're running a script, command, whatever.. You don't expect it to take long, now 5pm has rolled around and you're ready to go home... Wait, it's still running... You forgot to nohup it before running it... Suspend it, send it to the background, then disown it... The ouput wont go anywhere, but at least the command will still run...

convert mp3 into mb4 (audiobook format)

to convert a whole directory, put all mp3 files in a for loop $ for i in $(ls *mp3); do mpg123 -s $i | faac -b 80 -P -X -w -o ${i%mp3}m4b -; done

reverse order of file

Extract rpm package name, version and release using some fancy sed regex

This command could seem pretty pointless especially when you can get the same result more easily using the rpm builtin queryformat, like: $ rpm -qa --qf "%{NAME} %{VERSION} %{RELEASE}.%{ARCH}\n" | sort | column -t but nonetheless I've learned that sometimes it can be quite interesting trying to explore alternative ways to accomplish the same task (as Perl folks like to say: There's more than one way to do it!)

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"

Mac osx friendly version of this terminal typing command at 200ms per key

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Commands tagged socat (9)

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