Hiding SSH Host Banner Doesnt work

bo0od bo0od at riseup.net
Wed Jun 17 04:32:38 AEST 2020

maybe its useful but on the other hand its bad decision if user want to 
hide it in order to avoid bots attacks for vulnerable versions (for 
surely it should be left not updated for long time BUT still optional 
setting is preferable for the user to choose hide it or not)

Default can be show version , but at least provide easy option to hide.

Damien Miller:
> On Mon, 15 Jun 2020, bo0od wrote:
>> Im trying to hide the ability to show my host details from OpenSSH on
>> GNU/Linux Debian using this method:
>> Add the following line to /etc/ssh/sshd_config
>> DebianBanner no
>> And restart your SSH daemon: /etc/init.d/ssh restart or service ssh restart
>> This doent change anything.
>> Another question why user cant hide SSH info as well? why it needs to be
>> publicly visible? (I read that only recompiling would fix that but this is
>> pain in the neck)
> It's public because it's used to make compatibility decisions, see compat.c
> in the OpenSSH source distrubution.
> -d
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