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encryption

Configure MD5 encrypted passwords for users on Cisco IOS

2008-05-20
By: admin
In: Cisco
Tagged: Cisco, encryption, ios, MD5, password, Security

The enhanced password security in Cisco IOS introduced in 12.0(18)S allows an admin to configure MD5 encryption for passwords. Prior to this feature the encryption level on Type 7 passwords used a week encryption and can be cracked easily and the clear text password (type 0) as anyone would know is completely insecure. Anyone who can gain access to the privilege mode can view/decrypt these passwords. If you’re new here, you may want to subscribe to my RSS feed. Thanks for visiting!Read More →

How to set Passwords in Cisco IOS Routers and Switches

2008-03-20
By: admin
In: Cisco
Tagged: Cisco, cisco-ios, enable, enable-secret, encryption, ios, password, router, switch

One of the basic configurations when setting up a Cisco Router or a Cisco Switch is setting the passwords. This includes, setting the passwords for the Console, Telnet/SSH and the Enable (Enable Secret) The following procedure will help starters set up passwords in Cisco Routers and Switches running Cisco IOS.Read More →

How to configure Site-Site IPSec VPN in Cisco Routers (IOS)

2008-02-22
By: admin
In: Cisco, Security, vpn
Tagged: 3DES, AES, ah, authentication-header, encryption, esp, firewall, ipsec, SHA, vpn

Virtual Private Network (VPN) is a network which uses a shared network infrastructure (Internet) which allows a secure access between two networks or securely connects a remote user to his corporate network. Let's check out here how to configure a Site to Site VPN using a Pre-shared Key in Cisco Routers running Cisco IOSRead More →

How to fix Exchange & Outlook connection issues over IPSec VPN

2008-02-22
By: admin
In: juniper, vpn, Windows
Tagged: encryption, exchange, fragmentation, ipsec, juniper, MSS, mtu, outlook, screenos, vpn

Recently we had this problem with this problem with an Exchange 2003 server in the HQ and Outlook Clients in a particular branch office. The Branch office connects into the HQ through a site to site IPSec VPN using Juniper Netscreen SSG20 firewalls on either end of tunnels. The Problem The Outlook clients would connect OK but suddenly loose connection to the Exchange server and never connect back. The Outlook Client status will say "Disconnected". The client PCs will however be able to ping the server and network connections look OK. This happened in random times and sometimes when sending large emails.Read More →



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