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

Linux

Service account
Byetzion 27/05/2009

Assume you have a single purpose account. Maybe some service account, user which should run a single task ever, or even a case of a limited menu interface. You want your user(s) to reach there using SSH because that is the method to do it right and secured. You want it to be easy for…

Read More Service account
Disk Storage | Linux

Installing one Linux from another
Byetzion 19/04/202319/04/2023

I have recently acquired a new computer without an operating system, and I wish to install Oracle Enterprise Linux version 9.1 on it. The ISO file required for the installation is located on an NFS file server, accessible through a network infrastructure. The hardware boots using uEFI, and I have a USB disk-on-key containing Ubuntu…

Read More Installing one Linux from another
Linux

Cables in Israel and L2TP on Fedora Core 3 Linux
Byetzion 07/11/2005

I have noticed there is no fixed guide for L2TP for cable connection in Israel. Since I’ve been doing just this thing today, I’ve decided to put online my own comments on the issue, with hope it would help other people too. Subject: L2TP cables connection to an ISP called Actcom in Israel, using Fedora…

Read More Cables in Israel and L2TP on Fedora Core 3 Linux
bash | Clusters | Linux | Not Really Technical | RedHat Cluster | Scripting/Programming

RedHat Cluster custom Oracle “Agent”/script V1.0
Byetzion 24/04/2009

Working with RH Cluster quite a lot, I have decided to create an online store of customer agents/scripts. I have not, so far, invested the effort of making these agents accept settings from the cluster.conf file, but this might happen. Let the library be! Oracle DB script/agent: Although I discovered (a bit late) that RH…

Read More RedHat Cluster custom Oracle “Agent”/script V1.0
Clusters | Linux | Oracle

cluvfy fails with user equivalence
Byetzion 11/09/201911/09/2019

I came across a Linux host (RHEL6.2) which I was not the one managing before, which required adding a node in Oracle 11.2 Grid Infrastructure. According the common documentations, as can be seen here, after cloning the host (or installing it correctly, according to Oracle requirements), you should run ‘cluvfy’ on the existing cluster node….

Read More cluvfy fails with user equivalence
Linux

RedHat/OEL 8 self-repo “package is filtered out by modular filtering”
Byetzion 12/11/202227/01/2023

RedHat introduced using modules in DNF on RHEL version 8 (and above). This opens very interesting new options, however, sometimes – a quick-n-dirty repo is needed. An example – for offline systems, a repo of already installed packages (on exactly similar system) is created for later use. This used to work well on RHEL version…

Read More RedHat/OEL 8 self-repo “package is filtered out by modular filtering”

Related posts:

Similar Posts

Leave a Reply Cancel reply