My 2015 Mac Book Pro is getting a little old and tired. I recently joined a project that uses a docker-compose configuration that spins up 8 separate containers. It barely works on my Mac. It takes a long time to … Continue reading
If you are using a sitemap.xml file you know you need to submit it to the search engines on a regular basis (say nightly). This is done via a GET request to each search engine’s ‘ping’ URL. Many of the … Continue reading
Ubuntu retains apt package downloads. It also default installs all locales (language packs). These can be freed up to reclaim as much disk space as possible. This should come in handy on VPS servers, especially the smaller ones backed by … Continue reading
Ssmpt is a light weight mail package that is easy to configure and suitable for my needs during local development. It is basically a mail forwarder, can’t receive email, and has very few settings relative to a program like sendmail. … Continue reading
Ubuntu has built in home folder encryption similar to OSX. I always turn on this feature on both OSs and have never experienced any perceptible performance hit. This guide shows one approach to migrating the MySQL data directory into the … Continue reading
Ran into a situation on a customer’s CentOS server the other day where a service wasn’t working. Symptoms and error messages indicated the disk was full. However ‘$ df -h’ was showing ample free space. What the heck? Turned out … Continue reading
When trying to build SysBench 0.4.12 you may be getting an error like: /bin/sh ../libtool –tag=CC –mode=link gcc -pthread -g -O2 -o sysbench sysbench.o sb_timer.o sb_options.o sb_logger.o db_driver.o tests/fileio/libsbfileio.a tests/threads/libsbthreads.a tests/memory/libsbmemory.a tests/cpu/libsbcpu.a tests/oltp/libsboltp.a tests/mutex/libsbmutex.a drivers/mysql/libsbmysql.a -L/usr/local/mysql/lib/ -lmysqlclient_r -lrt -lm ../libtool: line … Continue reading
From time to time, MySQL 5.1 databases need a little house keeping. We found our production DB had a hard time running a simple join query between two tables with about 400k rows. It was taking between 30 and 100 … Continue reading
Tutorial on command line SSH tunneling, port forwarding. How to setup an SSH tunnel using bash scripting. SSH port forwarding (aka tunneling) is useful for getting into remote systems securely. If you need to access a database server, source repository, … Continue reading
Take the song “Here Comes Santa Clause”, and instead sing “Here comes Cent-OS”. Here comes CentOS! Here comes CentOS! Right down CentOS Lane! Linus and Stallman and all their c-code, making up the brains, Files are loading, packets pinging, All … Continue reading
