Do you want your workstations to connect to PPTP VPNs through a Cisco Pix firewall without having to setup a static NAT for each one.
Are you getting the following error in your syslogs when you try:
"regular translation creation failed for protocol 47"
All you should have to do is add a new fixup protocol entry.
"fixup […]
Holy cow! Can you believe that finally the developers of Wireshark have reached 1.0.0 of their product. I have been running 0.9X versions of this software for what seems like forever.
Wireshark for you who haven’t looked for a long time used to be the packet sniffer called Ethereal. This is a great free packet sniffer […]
So I thought I would discuss the topic of multiple default gateways on Windows Servers today since my buddy blogged about it.
IT and Development Best Practice
First off you should never have two default gateways on your servers. It doesn’t matter which OS you are running, Windows 98/NT is worse at handling the condition but […]
So as many of you know who have used it in the past netflow is a great tool. Netflow gives you detailed information about traffic flowing through your routers. You can find out what IPs the traffic is coming from and going to, you can see what protocols, what ports and how much traffic is […]
Hey do you need to get rid of NetBios on your network interface but when you try to do it through network properties your server crashes?
Then do it through the registry:
HKLM\System\CurrentControlSet\Services\NetBT\Parameters\Interfaces\Tcpip_AdapterID}\NetbiosOptions
NetBIOSOptions = 0 | 1 | 2
0 - Uses NetBIOS setting from the DHCP server.
1 - Enables NetBIOS over TCP/IP.
2 - Disables NetBIOS over TCP/IP.
Reboot […]
The well designed and well run network should basically run itself. Every hour of everyday the network should just hum along. People shouldn’t even realize that it is there. Users should be able to plug-in to a jack or hook-up to wifi without have to contact the IT dept. A well run network should handle […]
So this is a follow-up post to Latency Vs. Bandwidth where I gave a good link to an explanation on the differences between the problem of Latency and Bandwidth on the Internet. The same blogger had a follow-up post that explained a few ways for you to help improve high latencies.
This is another good article that […]
I ran across a pretty good read today that explains the problem with latency on WAN networks. The first part starts out saying that a lot of IT managers do not understand that just throughing more bandwidth at a problem won’t solve all your problems. This might be true of IT manager’s but all Network […]
Cisco confirms the memory exhaustion vulnerability as per the advisory published by CERT/CC and confirms this vulnerability impacts the PIX and ASA appliance for system software 7.2 only. Exploitation of the vulnerability may lead to a Denial of Service condition against the appliance.
The Firewall Services Module (FWSM) is not affected by this vulnerability.
PSIRT would […]
Promqry
Kind of a sweet little tool my buddy sent me. I installed it and ran it, doesn’t do you much good if you aren’t an Administrator of the boxes you are scanning but it is an easy to use tool. Good program to have in your toolbelt if you are paranoid like me.
Technorati tags: Network, […]
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