Juniper NetworkConnect (NC) and 64bit Linux

Byetzion 25/06/2013

Due to a major disk crash, I have had to use my ‘other’ computer for VPN connections. It meant that I have had to prepare it for the operation. I attempted to login to aJuniper-based SSL-VPN connection, however, I did get a message saying that my 64bit Java was inadequate. I had a link, as part of the error message to Juniper KB, to which I must link (remembering how I have had to search for possible solutions in the past).

The nice thing about this solution is that it does not replace your default Java version on the system, which was always a problem, as I was using Java for various purposes, but it recognizes that it’s part of the (update-)alternatives list, and makes use of the correct Java version.

Juniper did it right this time!

Oh – and the link to their KB

And to Oracle Java versions, to make life slightly easier for you. You will need Oracle login, however (you can register for free).

Disk Storage | Linux

Better iostat visibility of ZFS vdevs

Byetzion 04/07/202111/03/2023

All ZFS users are familiar with ‘zpool iostat’ command, however, it is not easily translated into Linux ‘iostat’ command. Using large pools with many disks will result in a mess, where it’s hard to identify which disk is which, and going to a translation table from time to time, to identify a suspect slow disk….

Linux

Web server behind a web server

Byetzion 26/05/2006

I’ve acquired a new server which is to supply services to a certain group. On most cases, I would have used PREROUTE chain in my IPTABLES on my router for prerouting, based on a rule such as this: iptables -t nat -I PREROUTING -i <external_Interface_name> -p tcp -s <Some_IP_address> –dport 80 -j DNAT –to-destination <New_server_internal_IP>:80…

Linux

Converting crt to PEM

Byetzion 04/10/2006

Took two steps: openssl x509 -in input.crt -out input.der -outform DER openssl x509 -in input.der -inform DER -out output.pem -outform PEM Related posts: USB Auto mapping to Windows VM under KVM does not work IPSec VPN for mobile devices on Linux Powered by YARPP.

Disk Storage | Linux | Scripting/Programming

MySQL permissions for LVM Snapshots

Byetzion 23/10/2008

aking LVM snapshots as a mean of backing up MySQL is rather simple, as can be described here. However, if you are into security, you would strive to grant minimal permissions for the action to the MySQL user. Per MySQL Documentation, the required privileges is “RELOAD”. That should be enough, granted on *.*, of course….

Clusters | Linux

Tips and tricks for Redhat Cluster

Byetzion 31/01/2009

Redhat Cluster is a nice HA product. I have been implementing it for a while now, lecturing about it, and yes – I like it. But like any other software product, it has few flaws and issues which you should take under consideration – especially when you create custom “agents” – plugins to control (start/stop/status)…

Linux

DSL (Damn Small Linux) Diskless boot

Byetzion 31/08/2007

I have come across a requirement to boot a thin client on a very cheap hardware into Linux. Due to the tight hardware requirements, and the tight budget, I have decided to focus on diskless systems, which can be easily modified and purchased to our needs. Not only that, but due to the hardware configuration…

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