putty send null

Question

Using Putty, how can someone send a null character, ie \0

I have seen control+@ but that doesnt seem to work.

I'm trying to do manual SMTP AUTH:

EHLO
AUTH PLAIN username\0\0password

Another possible issue: in the examples I've seen using AUTH PLAIN, it looks like the user name and password need to be Base64 encoded. — vjones, Commented Mar 16, 2013 at 16:49
none of the methods from wikipedia or "alt+000" or "alt+256" seem to work for me. related: superuser.com/questions/61742/… — Ярослав Рахматуллин, Commented Mar 16, 2013 at 22:17

Community · Accepted Answer · 2017-03-20 10:17:29Z

4

The following worked for me when using PuTTY on windows with a local serial port.

On Mac I used the 'screen' program.

Open the OS X terminal program, and run screen /dev/tty.SLAB_USBtoUART 115200 Use the path of your own serial device, something in /dev/tty.* 115200 was the baud for my specific device.
Send null with ^@ (Ctrl+Shift+2). See This SU Post

References:

CommunityBot

1

answered Mar 4, 2014 at 0:51

benathon

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When using alt+025 it works, thanks for the trick. But if I paste "^@" into PuTTY it doesn't, the receiver SMS shows "Üi".? Another thing the manual to my Siemens TC65 modem says the escape sequence is "\\00". It worked a few days ago but suddenly it doesn't. I can't get wise on thoses escape-sequences :-(
– MrCalvin
Commented Feb 11, 2018 at 9:50

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