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Cisco IconCisco ASA 5500 Site to Site VPN (From CLI)
20/04/14 - Updated - I'm gearing up to re-write the 'hair-pinning/hub & spoke' VPN piece, so I revisited this subject this weekend. This article has now been updated so you can simply copy and paste the config. [
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Cisco IconSecuring Network Device Access With Cisco ACS (and Active Directory)
15/04/14 - I turned my back on Cisco TACACS+ back in my 'Studying for CCNA' days, because back then it was clunky and awful. Since taking a look at version 5.5 I was surprised at how much more polished a product it is. [
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vSphere IconVMware vCenter Install 'Error 26002'
14/04/14 - While attempting to install vCenter 5.5, I got this error. Earlier on in the install it had asked me if I wanted to overwrite the certs, and I just clicked OK, this probably was not such a good idea! [
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Cisco IconCisco - Cracking and Decrypting Passwords (Type 7 and Type 5)
08/04/14 - How to decrypt and recover Cisco Type 7 and Cisco Type 5 passwords from your Cisco config files. [
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Android IconAndroid - 'Email sync is disabled'
07/04/14 - My Galaxy Note 3 prompted me for an upgrade last week, it took me a while to notice (because I manually sync my Email) that I could no longer collect my email, every time I tried it said Email sync is disabled (account name). [
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CentOS IconCentOS - Setup the iptables Firewall
07/04/14 - I was a little perturbed to find out the firewall on my CentOS web server was wide open today. My server setup notes yielded no clues, so it was time to put my 'Linux Head' on and fix it. [
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Cisco Router IconCisco Router - CBAC and Zone Based Firewall Setup
05/04/14 - Context-Based Access Control (IOS Firewall Classic), and Zone Based Firewall are two very different beasts. Here I run through the simple setup of both, while allowing for VPN traffic. [
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Cisco IconVPN Error - 'CRYPTO-4-RECVD_PKT_NOT_IPSEC'
04/04/14 - While setting up a simple site to site to site VPN, I was unable to get ISAKMP phase 1 to establish. When I had a look on the device at the far end. I saw this error logged in the console, every time I tried to bring up the tunnel. [
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GNS3 IconGNS3 - Error 'ghostsize is to small for device'
03/04/14 - While doing a quick lab in GNS3, I tried to add NAT to a router, and it fell over with an 'NBAR ERROR: parsing stopped'. Then when I tried to fix that with more memory, this happened. [
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Cisco IconCisco Router - Setup Remote Telnet/SSH Management
02/04/14 - Having the ability to remotely administer network devices, means I don't have to get my lazy carcass out of my chair and start fishing console cables out of my bag, also it saves on shoe leather, and traveling time. [
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Cisco Router IconCisco Router - Configure Site to Site IPSEC VPN
01/04/14 - I've done thousands of firewall VPN's but not many that terminate on Cisco Routers. It's been a few years since I did one. So when I was asked to do one last week, thankfully I had the configs ready to go. [
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GNS3 IconGNS3 - Assign an IP Address to Linux Microcore QEMU Guest
31/03/14 - The whole point of having these guest machines is for testing communications, so putting an IP address on them so you can ping things, is a pretty basic step. [
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Cisco IconCisco Router - Password Recovery /Bypass
30/03/14 - If you have a Cisco router that you have forgotten the password for, or have been given one, or simply bought one from ebay, you may not know the password. [
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ThinkPad IconLenovo ThinkPad - 'Where is the Pause/Break Key?'
29/03/14 - Much as I like my S531 work ThinkPad, I thought after discovering it had no serial port, no RGB monitor port, and the worst touch-pad in the entire history of input devices (I now carry a mouse it's so bad!), that my bad experiences were over. [
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Cisco IconCisco Router IOS - Configuring EIGRP
26/03/14 - For the first time in about ten years I had to deal with EIGRP last week, so I thought I would run it up in a lab. Normally I would use GNS3 but for this procedure I'll use Cisco Packet Tracer. [
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Excel IconExcel - IP Address Formula for 'Auto fill
22/03/14 - I got asked this week if I know how to do this, a colleague was doing a spreadsheet, and needed to quickly put in IP addresses. [
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McAfee IconGNS3 - Initial Setup, Adding Routers, Hosts, and ASA Firewalls
15/03/14 - I dip into GNS3 every so often, (depending on what I'm working on). And every time I install it, I spend as long remembering how to set it up, as I do using it! [
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Older Posts [2][3][4][5]