NachoTech Blog

Tech tidbits that have crunch!

Entries for the ‘System Administration’ Category

Opening firewall ports for iLO

If you want to access an iLO behind a firewall, there are some TCP ports that need to be opened on the firewall to allow all iLO traffic to flow through.  Here is a list of the default ports used by iLO, but these can be modified on iLO’s Administration… Access… Services… tab.

How to Kill iLO 2 Remote VSP Connections

A new feature crept in unannounced in the recent iLO 2 v1.77 firmware update from HP: You can now kill / terminate Virtual Serial Port (VSP) sessions that are open or hung. This is a very useful when you need to connect to the VSP but you (or someone else) is already connected from another […]

Update iLO firmware en masse with BladeSystem Onboard Administrator (OA)

This OA command I recently came across works like magic. If you’ve ever done it manually, you know how time consuming it can be to update the iLO (Integrated Lights Out) firmware across multiple ProLiant servers. However, with the BladeSystem Onboard Administrator, it can be accomplished in seconds using a single CLI command to update […]

How to find all the iLO’s on your network

Have you ever forgotten an IP address for an iLO on your network? Do you ever wonder “What’s my iLO IP Address?” Maybe you’re using DHCP, and you’ve added a new server to your network, but you don’t know the IP address of its iLO (and you’re not using dynamic dns – so the iLO […]

How to Split Up (and Recombine) a Big File on Leopard (or Linux)

Sometimes you might have a very large file that you want to email or FTP to someone, but your email server limits you to small size attachments. The good news is that this is very easy to do with the tools already on your computer. The bad news is that you may have to learn […]

Setting iLO Configuration using the Onboard Administrator

Haven’t you always wanted to configure your blade iLO’s en masse instead of one by one? You can now with the Onboard Administrator’s ‘HPONCFG’ command. Here’s an example of a RIBCL XML script that can be used with the HPONCFG command in the Onboard Administrator (OA) command line interface (CLI). This example script will modify […]

Enabling Linux Serial Console with a Script

There are a number of steps needed to properly enable a serial console on Linux. You have to make sure that the kernel uses it for logging, make sure a getty runs on it, make sure that kudzu doesn’t mess with your terminal, and finally make sure that root logins are allowed on it. To […]

Using conserver to monitor iLO virtual serial ports (updated)

There are a lot of companies that use serial console servers (e.g. Cyclades) to monitor the serial ports of their servers. These servers are usually running an operating system like Linux or FreeBSD. By accessing the serial console, the administrator can control almost everything on the server, and even watch it boot. This type of […]