Yet another IT blog... (Page 2)

Yet another IT blog...

RSA Key file based SSH on Debian Linux.

RSA Key file based SSH on Debian Linux.

Hi again world! One of the best things I ever did since i first time played with an Amazon EC2 Debian instance, was to copy the SSH login procedure it came with to any other production system I take care of. Nothing, even changing listening port, has ever made more

CISCO back to back E1 serial connection

CISCO back to back E1 serial connection

Hi again! So now that I'm shortly going to resume my CCNA R&S Course at the CISCO Networking Academy, I'm resuming my "Ciscoish" thoughts, tools and toys. We are very encouraged to put "hands on stuff", and eBay makes easy

Nice booting with non-free Debian Stretch NVIDIA drivers

Nice booting with non-free Debian Stretch NVIDIA drivers

Hi again people... So, this week I readed that, finally, NVIDIA proprietary linux drivers do enable DRM from kernel initial module load stages, and so, setting bootsplash animation during boot will no longer require legacy framebuffer tricky hacks... Unfortunately, driver version involved seems to be from 364.12, which is

Make Hauppauge HVR-4000 work on Debian...

Make Hauppauge HVR-4000 work on Debian...

I have long time owned this, very popular at its time, capture card, and it is still working fine in my Windows 7 based Media Center HTPC: It is able to tune DVB-T (terrestrial) digital and analog broadcasts nicelly and, in the same card, it is able to tune DVB-S

Getting rid of 'Zombie' processes.

Getting rid of 'Zombie' processes.

I have read quite posts around looking for a way to kill processes marked as 'Zombie'... In theory (and I guess this assertion is true since it makes sense to me) zombie processes are harmless, since the process doesn't truly exist, it died or was killed

Debian Jessie, PC-Engines Alix, and the serial console.

Debian Jessie, PC-Engines Alix, and the serial console.

Being close to my 40th year on Earth, and having had my first computer as I was 10 years old, I'm still very reluctant to drop some old school things such as RS-232 serial consoles to get system console. I love how easy and unchanged over time is

My tribute to kernel's IRQPOLL

My tribute to kernel's IRQPOLL

This is something I should have done before, since to be sincere, and having put into production several encoding appliances very successfully thanks to this "kinda Linux Kernel hackish trick" I owe part of my IT career success to irqpoll kernel option... Yesterday, destiny faced me against my

Making CISCO PIX/ASA Transparent DHCP through to work.

Making CISCO PIX/ASA Transparent DHCP through to work.

Hi! Again. Last month I purchased one of those CCNA lab kits found on eBay at very low prices. Although the hardware is absolutely at end-of-sale / support from CISCO, it is very very cheap, and bring us the opportunity to go beyond Packet Tracer, get the screwdriver, and really put

Quieting my CCNA Lab Catalyst 3550

Quieting my CCNA Lab Catalyst 3550

Hi again people. Today I'm writting after successfully make my CCNA Lab CISCO Catalyst 3550 48 port switch reasonably quiet and still cooled down enough to keep temperature under control. As you may know, Catalyst 3550 series switches go very hot when operating. Its top cover case has

Debian Jessie gateway fail-over switch daemon.

Debian Jessie gateway fail-over switch daemon.

Hi again! Recently I resurrected an old Alix1d board that was thrown away in the office old-crap storage since I needed a cheap way to have an Internet gateway appliance that I could program to switch between uplinks. Although there are plenty of appliances to do so at first glance,

Jessie4Alix

Debian Jessie image for PC Engines Alix boards. After having read recent news about drop of support for old CPUs in the 32 bit architectures, having around several good PC Engines Alix boards I was concerned about their doom. Debian 9 i386 seems that will be mostly (if not fully)

Disk and MoBo temp monitor in transparent Conky...

Disk and MoBo temp monitor in transparent Conky...

Conky monitoring widget Conky is a cool monitoring piece of software. When set with transparency, it provides a kind of cool, floating monitoring widget in your desktop, providing a clear, nice and quick overview of our computer, providing plenty of information from many sources (CPU clock, hardware temp, filesystem usages,

Check_mk on pfSense 2.2.x

Check_mk on pfSense 2.2.x

In my last post I explained how do I manage settiing munin in pfSense systems, so, you may guess, I'm one of those monitoring fans around... So, that we have plenty of information on how to get our pfSense boxes monitoried by ELK (Elasticsearch Logstash Kibana) stack, I&

Munin-node on pfSense 2.1.x and 2.2.x

Munin-node on pfSense 2.1.x and 2.2.x

I like monitoring... and, after early mrtg experiences, munin was my first, production, centralized monitoring system I dealt with. Although focused in graphing, It is very useful if you want a quick plain website where you can simply put and browse all your systems graphs. Since I use pfSense both