Yet Another Tech Blog!

If you would like to completely automate the renewal of a Let’s Encrypt (or other) SSL Certificate and then deploy this to your Cisco IOS router (or ASA Firewall) using simple bash scripts, keep reading. There are really three components to solving the issue, first of course is that your FQDN (vpn.yoursite.com) has to be registered with a DNS server – Google is best if you have a dynamic IP address. Here is how you would do that – https://support.google.com/domains/answer/6147083…

Read More Read More

I needed to get a VPN setup for a test case and after spending a considerable amount of time ironing out all the bugs (including the infamous Microsoft patch KB258554) which caused unnecessary headaches, I thought I’d just post it here if someone else can use it. Two things, I’ll suggest, One, make sure that you have a newer version of IOS and two don’t forget to explicitly specify ‘SSL Encryption type’ under your gateway configuration, So, here is the…

Read More Read More

During testing and validation or for whatever reason you might want to do a factory cleanup of a Cisco HX cluster. This is generally not a trivial task if you want to follow the TAC directed steps for cleanup. At a high level, you need to  accomplish three things Cleanup the Hypervisor by gracefully removing the HX Controller VMs and the VIBs Cleanup vCenter by removing plugins and other HX Installer configured settings Cleanup UCS Manager and remove whatever HX…

Read More Read More

When I recently received a hand-me-down APIC controller from a fellow friend, it came with a very old version of CIMC and it was impossible to upgrade the Controller due to the Java incompatibility and browser issues. Yes, I tried three different version of operating systems and multiple versions and security settings within java and finally gave up on using the virtual KVM to mount the APIC ISO. I had an old USB DVD player lying around at home, and…

Read More Read More

Do you run your own mail server and are inundated with spam that you can’t control with installed software on your server? Read on to find the best and cheapest solution to rid yourself of spam. I have been running a postfix server for a while with spamassassin but it’s always been a challenge to keep the spam out, until now. Once I started using MX Guarddog my spam level has went down to zero. In addition to pointing your…

Read More Read More

FreeNAS disables the default pkg repositories on the underlying FreeBSD. In order to enable this, edit the file below using your favorite editor /usr/local/etc/pkg/repos/FreeBSD.conf and change the text from FreeBSD: { enabled: no } to FreeBSD: { enabled: yes } Then, run pkg update, and pkg install unrar run unrar e filename.rar as a regular user (not root) remember to go back and undo the changes to FreeBSD.conf

← Cisco UCS Director HA and DR configuration Nutanix: One Non-Operational Year Posted Originally on March 9, 2016 by raj Please note that the Author has requested me to take down this post due to pressure from Nutanix. #Corporatebully #Legalaction Funny thing is that Nutanix CEO responded to the customer’s blog saying that “…Unlike other big companies, we would *not* request you to take this blog down. …” (His comments attached below) Sudheesh Nair, President @Nutanix reached out to me…

Read More Read More

UCS Director is a simple yet very powerful Automation and Orchestration software ideal for any customer that’s looking to simplify their IT operations and bring a certain level of uniformity on deploying IAAS. Please visit Cisco’s product page to learn more about it. This blog is going to focus on the HA and DR configuration at a very high level. Assumptions There are two ways to deploy UCS Director, as a single appliance or as multi-node setup. In this document,…

Read More Read More