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Category Archives: Linux / Unix

utmpdump: Dump UTMP and WTMP Files in Raw Format

October 29th, 2019 Posted in Linux / Unix | Comments »

Login attempts can be tracked in real time with the following command: /bin/utmpdump -f /var/log/btmp I received a Logwatch email reporting a “corruption detected in /var/log/btmp : XX time(s)” issue. By performing an Internet search for the reported issue, I found Gabriel Cánepa’s How to Monitor User Login History on CentOS with utmpdump. Cánepa describes […]

RHEL 8 Application Streams and SCL

August 14th, 2019 Posted in Linux / Unix | Comments »

Red Hat Enterprise Linux 8 introduces Application Streams. Software Collections (SCLs) are no longer needed in RHEL 8. According to Introducing Application Streams in RHEL 8, Application Streams, containerization, or virtualization can be used to fulfill needs met previously by SCLs. I recently updated PHP and Apache httpd on a CentOS 6 server with Software […]

Installed Lubuntu 13.10 on Mini 9

January 11th, 2014 Posted in Linux / Unix | 1 Comment »

I recently installed Lubuntu 13.10 to continue running updated versions of Ubuntu on my Dell Inspiron Mini 9. My Mini 9 was delivered with Hardy Heron (Ubuntu 8.04 LTS), and it will bother me to have installed a different flavor of Linux. The procedure that I describe requires an existing Ubuntu installation and wired ethernet […]

Taking a Byte of Raspberry Pi

July 21st, 2012 Posted in Linux / Unix | Comments »

Gaining access to new embedded processors is exciting. I recently ordered a Raspberry Pi Model B for 49.49USD, which includes the cost of the board, a case, and shipping. With an expected ship date that is 11 weeks away, its delivery is something I can be excited about for awhile. The Raspberry Pi Model B […]

Linux Kernel Development

July 16th, 2012 Posted in Linux / Unix | Comments »

For nearly a decade, I have had a latent interest in developing the Linux kernel. I administered Linux servers for years, but I never had as much motivation as I have now to explore the kernel’s mechanisms. I remember leafing through books, at Borders, that made kernel development seem inaccessible. Robert Love’s book, Linux Kernel […]