por Miguel | Ago 28, 2018 | linux
The Epson TM-U220B (model M188B) is a receipt printer with a DB25-DB9 cable. It will be connected to the host via Serial port and recognized in Linux as /dev/ttyS[X] In this post is explained how to find out which device was detected by the operative system. In my...
por Miguel | Ago 24, 2018 | linux
My system has been freezing from time to time, today it became totally unresponsive even after a restart. I saw many services failing in the boot loading process. After checking the disk I found that /var was at 100%, checking the logs we must thank Chrome for such...
por Miguel | Ago 22, 2018 | pulse-secure
I’ve installed the product on Lubuntu 16.04.3 and made it work, the installation process involved: ps-pulse-linux-5.3r4.2-b639-ubuntu-debian-64-bit-installer.deb libproxy1-plugin-gsettings_0.4.11-5ubuntu1_amd64 libproxy1-plugin-webkit_0.4.11-5ubuntu1_amd64...
por Miguel | Ago 22, 2018 | pulse-secure, ssl
Yesterday a new problem arrived. This time was a certificate problem brought by our VPN web page and the Pulse Secure client. Instead of connecting to the VPN through Firefox I wanted to do it by using Pulse Secure. My original post is in the Pulse Secure community....
por Miguel | Ago 13, 2018 | linux
Scenario of this document: At corporate level our users have laptops, depending on where they are Firefox should detect the proxy settings if: The user is using the laptop with an Ethernet cable (at the office) The user is using the laptop via Wi-Fi (at the office)...
por Miguel | Jul 5, 2018 | linux
When working with a Linux system being loaded through PXE / tftpboot / NFS in a device without hard disk it could happen that we need to understand or fix problems at boot time process, part of it is initramfs. The procedure to unpack an initrd.img is simple: # create...
por Miguel | Jun 22, 2018 | bash, linux
Today I’ve found a nice problem to solve in stack overflow. There was this guy claiming why unix utility grep didn’t parse this file in his Linux. Long story short the file was being somehow «recognized» as binary for grep, because it had four NUL values....
por Miguel | Jun 13, 2018 | php
I’ve been working in a little project to create HTML representations of certain processes / infrastructure in our company. Because I wanted to make something easy to maintain, I decided to create a unique configuration file with all the paths (variables) for...
por Miguel | Jun 12, 2018 | selenium
I’ve never used splinter or selenium before but I saw this question in stackoverflow and I felt like it was a chance to learn something new. The user of the question was trying to retreive the properties of a login textbox by using splinter and...
por Miguel | Jun 6, 2018 | linux
I’ve been working with terminator for years and one of the best things you can do is personalize your own layout with custom commands in each window. Be careful, terminator version 1.90 won’t render layouts properly. I’m using terminator 1.91 In my...
