controlling FTP usage on workstation

[Henry Chua]

Hi guys, is there any way to prevent specified or all user except "su" from remote logining in the system be it ftp or telnet etc.

Best regards
Henry

[RAC_1]

For ftp, use /etc/ftpd/ftpusers file.
man ftpusers for details.

For telnet, to deny direct root, login, prepare /etc/securetty file put "console" in it.

[Arunvijai_4]

Hi,

You can do it with the help of /etc/ftpd/ftpusers file. It is called "security file for ftpd". You can find more information by doing a man ftpusers.

-Arun

[Henry Chua]

Hi guys,

I dun seem to help that folder "ftpd" or file ftpusers on my system. I am currently using 10.20b - will this be a problem?

Best regards
henry

[Muthukumar_5 · Accepted solution]

You can control users for ftp with ftpusers file. Read man ftpusers page.

To control telnet based access then,

edit /etc/profile:

if [[ ${LOGNAME} != "su" ]]
then

ps | grep -q 'telnet'

if [[ ${?} -eq 0 ]]
then
echo "Telnet access with ${LOGNAME} is denited in this machine"
sleep 2
exit 1
fi
fi

will do it.

--
Muthu

[Arunvijai_4]

Hi Henry,

I dun seem to help that folder "ftpd" or file ftpusers on my system. I am currently using 10.20b - will this be a problem?

Did you try "man ftpusers". You need to create that file. It doesnt exists by default.

-Arun