For FTP server:
To change the greeting banner for vsftpd, add the following directive to the /etc/vsftpd/vsftpd.conf file:
| ftpd_banner=<insert_greeting_here> |
Replace <insert_greeting_here> in the above directive with the text of the greeting message.
For mutli-line banners, it is best to use a banner file. To simplify management of multiple banners, place all banners in a new directory called /etc/banners/. The banner file for FTP connections in this example is /etc/banners/ftp.msg. Below is an example of what such a file may look like:
####################################################
# Hello, all activity on ftp.asgaur.com is logged.#
####################################################
For SMTP(if using postfix)
edit /etc/postfix/main.cf
| smtpd_banner = $myhostname ESMTP $mail_namen n System Info: This is a Postfix mail servern . running a multiline SMTP greeting patchn n Please don’t send me SPAM here – we don’t like it |
For SMTP(if using sendmail)
define(`confSMTP_LOGIN_MSG’, `somehost.com n System is being Monitored’)dnl
Telnet greeting message:
| Edit file /etc/issue |
SSH : Secure shell login greeting message:
| Edit file /etc/ssh/sshd_config Edit/enable the line: Banner /etc/issue Restart sshd: service sshd restart |
GDM login message:
Edit /etc/X11/gdm/gdm.conf as shown above. Configure “Welcome” option.