banners

[fahad_8]

My dearest friends
i got this report from security section

The target host divulges important version information on its telnet banner. Banners are text messages that are sometimes displayed when, the network connection is established. Banners often contain information that includes the name of manufacturer and version of the software. This information can be used to mount an attack on the host.

Recommendation: You should edit the default banners so it doesn’t expose the version numbers and service type.



soooo
how i can expose the version number and service type through banners ??

(edit the default banners)

[Warren_9]

hi,

i think the they are talking about the "/etc/issue" and the "/etc/motd"

for FTP service the login banner is configured in the /etc/ftpd/ftpaccess.

GOOD LUCK!!

[Luk Vandenbussche]

1. edit /etc/issue
2. edit inetd.conf as follows:
telnet stream tcp nowait root /usr/lbin/telnetd telnetd -b/etc/issue

[Chan 007]

Try

/etc/issue or /etc/motd & ensure that motd is enabled in /etc/profile

Chan

[fahad_8]

My friends
thanx for ur quick reply

but when i want to edit /etc/issue
it has only one line
{GenericSysName [HP Release B.11.11] (see /etc/issue) }

how i can edit this file

thank you soo much

[Warren_9]

hi,

if you don't want to show the whole message, just mv the file

# mv /etc/issue /etc/issue.old

or change it using "vi" editor...

# vi /etc/issue

or

if you not familiar in vi then

# echo "GenericSysName (see /etc/issue)" > /etc/issue

GOOD LUCK!!