As explained in one of my earlier posts, ScreenOS supports a couple of ways to provide for dynamic routing. Today, I’m going to explain some basic implementations of BGP on ScreenOS. Unlike my post on OSPF, I won’t Read more
Scenario : you have 1 Juniper firewall, which has 2 internet connections : an expensive but reliable 4Mbit connection, and a fast, less expensive, but less reliable 20Mbit connection.
Goal : use the reliable connection for smtp traffic (1Mbit) Read more
OSPF is a link-state (dynamic) routing protocol that operates within an autonomous system. OSPF falls within the group of Interior Gateway Protocols. Devices that use OSPF will
If you have multiple Cisco Ironport C350 devices, you may have noticed that safelist / blocklist entries are bound to an individual device. So if your Ironport devices are both installed to handle incoming mails, end users need to Read more
Keywords : microsoft exchange 2007 attachment size filtering quarantine block reject small zip files attached When messaging admins need to implement some sort of attachment filtering, they mostly think about antivirus products, or using transport rules in Exchange 2007. Read more
Keywords : Windows 2008 PKI Certificate Authority certutil certreq template root CA Enterprise CA convert pfx to pem generate custom certificate request subject alternate name san attribute Today’s blog post targets the deployment of a Windows 2008 server based Read more
A few days ago, I have posted some ScreenOS basics on this blog. Today, it is time to take it one step further and to look at setting up and especially troubleshooting IPSec VPN’s with Juniper Netscreen devices.
The following document is based on ScreenOS v5.4.0r7.0
– Interface = connection to a specific subnet. An interface is assigned an IP address only if firewall is operating in L3 mode. Default interface names can Read more
Keywords : Wireshark Out Of Memory tcpdump statistics pcap
The story I’m about to tell may sound familiar to most of you. You’ve been asked to gather some bandwidth utilization statistics on one of your servers. You’ve installed Wireshark Read more
According to Microsoft, Windows Server 2008 is the most secure Windows server version ever.
Windows 2008 does include many features that will help increase overall security of the OS, or assist you with securing AD, the network, etc. Most Read more
