I can't be able to access my juniper firewall 5gt net screen

Setup a proxy server and black list facebook.com that is the easiest way. Route all users to the proxy server and set premissions that does not let them change the proxy settings.

if you are using juniper netscreeen 5gt then please follow the below link :

http://kb.juniper.net/InfoCenter/index?page=content&id=KB4320

MOSTLY its cause the bocking is not proper or its weak to handle the network properties...

pleas use this link:
http://kb.juniper.net/InfoCenter/index?page=content&id=KB4320

This harder then you may think.

If you only have a 5GT FW to use to block this.
Then your best bet would be to figure out the network blocks for the Chat networks...simply block all traffic to these IP's.

-Greg

From the cli (Command line)

Type: reset

If there are any changes to be saved, you will be prompted

-Greg

Yes you can do as you expect.
ScreenOS Concepts & Examples ScreenOS Reference Guide, Volume 5: Virtual Private Networks Chapter 4 -- Site-to-Site Virtual Private Networks

"Route-Based Site-to-Site VPN, AutoKey IKE" Example
"Route-Based Site-to-Site VPN, Dynamic Peer" Example
"Route-Based Site-to-Site VPN, Manual Key" Example
"Setting AutoKey IKE Peer with FQDN" Example
"VPN Sites with Overlapping Addresses" Example ScreenOS 5.4: http://www.juniper.net/techpubs/software/screenos/screenos5.4.0/CE_v5.pdf

ScreenOS 6.0: http://www.juniper.net/techpubs/software/screenos/screenos6.0.0/CE_v5.pdf

No you cant, even if you reset the box it requires the default username and password. If you could brief me about your issues let me give you the solution

hi
you want to create security policy between the wired interface and wireless interface.

eg:

wired is trust interface
wireless is wireless interface.

create a rule between trust to wireless.
as well as rule between wireless to trust.

Reagrds,

Mani.S

I have given a ref. configuration for you. If you could provide me the debug results it would be great to help you.

set dns ddns
set dns ddns id 1 server-type dyndns clear-text
set dns ddns id 1 username USERNAME password PASSWORD
set dns ddns id 1 src-interface untrust host-name HOSTNAME.dyndns.org
set dns ddns enable

Then try exec dns ddns id 1