Missing binaries when running on Debian 6.0 ?

Hello, I´m not sure what the issue is, but with commands like "ssh-add" not found and "ping" missing it seems as Junest doesn´t work on my very old host (Debian 6.0), although the requirements should be met:

user@host:~$ bash --version
GNU bash, version 4.1.5(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
user@host:~$ uname -a
Linux host 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux
user@host:~$ junest -f -p "-k 3.10"
Downloading JuNest...
--2018-01-25 10:59:33--  https://s3-eu-west-1.amazonaws.com/junest-repo/junest/junest-x86_64.tar.gz
Resolving s3-eu-west-1.amazonaws.com... 52.218.65.20
Connecting to s3-eu-west-1.amazonaws.com|52.218.65.20|:443... connected.
WARNING: certificate common name “*.s3-eu-west-1.amazonaws.com” doesn’t match requested host name “s3-eu-west-1.amazonaws.com”.
HTTP request sent, awaiting response... 200 OK
Length: 152023399 (145M) [binary/octet-stream]
Saving to: “junest-x86_64.tar.gz”

100%[=====================================================================================================================================================================================================================================>] 152.023.399 33,6M/s   in 5,5s

2018-01-25 10:59:39 (26,5 MB/s) - “junest-x86_64.tar.gz” saved [152023399/152023399]

Installing JuNest...
The default mirror URL is https://mirrors.kernel.org/archlinux/$repo/os/$arch.
Remember to refresh the package databases from the server:
    pacman -Syy
JuNest installed successfully
sh: ssh-add: command not found
sh: egrep: command not found
sh: ps: command not found
sh: grep: command not found
Initialising new SSH agent...
sh: /usr/bin/ssh-agent: No such file or directory
Succeeded!
sh: /usr/bin/ssh-add: No such file or directory
root@host:~$ ping
sh: ping: command not found
127 root@host:~$ pacman -Syy
:: Synchronizing package databases...
error: failed retrieving file 'core.db' from mirrors.kernel.org : Could not resolve host: mirrors.kernel.org
error: failed to update core (download library error)
...

Any idea what I might be missing ?

fsquillace / junest

Missing binaries when running on Debian 6.0 ? #206