Several months ago, I released a tool (the Office 365 Proxy Pac Gen) to generate a Proxy Automatic Configuration file that can be used to bypass local proxy servers for Office 365 services. I also wrote a blog (Office 365 PAC file) on using the tool.… [ Continue reading ]
When we talk about Office 365 services with our customers, a lot of the discussion revolves around the networking components. While we generally have a “good idea” of networking, we’re not experts in your technology and will frequently tell you to go talk to your vendors. … [ Continue reading ]
Ran into an interesting customer issue regarding connecting to a wireless network. For whatever reason, this laptop can’t see the wireless network (though others in the office can). This laptop can connect to other WiFi networks without issue.… [ Continue reading ]
Tonight, I found myself having to copy the AnyConnect binaries from one ASA 5505 to another without a device on-LAN to TFTP to. I did, however, have a public FTP server that could use to move the data around.… [ Continue reading ]
After getting my PIX to boot in my previous post, I decided to run through the password recovery procedures.
What you’ll need:
- PIX recovery images (availble from either the Cisco site individually or here in one ZIP file)
- PIX firewall software version
- TFTP server software (I used the TFTP server included in the PacketTrap pt360 Suite in this exercise)
- Terminal Emulator (I typically use PuTTY)
- Connect Ethernet 0 on the PIX to your local LAN.
When meeting with a potential customer the other day, she mentioned that she had a running PIX with an unknown password.
I thought I’d refresh my PIX skills and decided to bust out an old PIX 506E we had sitting in the office.… [ Continue reading ]
Recently, we renumbered a client’s network to reduce broadcast traffic and introduced two new redundant internet connections. Everything seemed fine in the initial testing, and we all went home.
The next day, when we were sifting through the fallout tickets, there was a recurring theme–Windows Mobile devices were no longer synchronizing.… [ Continue reading ]
- Trying to access the “Virtual Media” section of a DRAC console
- Client is Windows 2008
- When accessing “Virtual Media,” get prompted to accept ActiveX control; accept, and get redirected to login page
- Open Internet Explorer, Tools > Internet Options; select Intranet, and select “Automatically detect Intranet network”
- Open %systemroot%\system32\drivers\etc\hosts.
For anyone who manages an Active Directory environment, you’ve undoubtedly come to understand the need for keeping time in sync. In short, you won’t be able to log in if the local computer time has more than 5 minutes difference than the logon server.… [ Continue reading ]
If you read my previous post on configuring Windows Server 2003 DHCP to serve PXE clients, you probably noticed option 066 for Boot Server Host Name.
What is a Boot Server, you may ask?
In simple terms, a boot server runs a TFTP (Trivial File Transfer Protocol) instance that is used to transfer small amounts of data.… [ Continue reading ]
Today, I was lending a hand to one of our Linux admins who was trying to get his servers Kickstarted. For the uninitiated, Kickstart is the Linux equivalent to Windows RIS.
PXE stands for Pre-boot eXecution Environment.… [ Continue reading ]
All That’s Unholy with Check Point SmartDefense
A few months ago, I ran into a problem when copying large files between two tiers of a network in one of our datacenters. I was doing a hardware upgrade on some Hyper-V hosts in a DMZ and was copying the images to a backup server while I swapped out hardware components in the Hyper-V hosts.… [ Continue reading ]