Category Archives: FLOSS
Tightening up OpenSSH
Often I am required required to run a public ssh server, so its a good idea to restrict the OpenSSH server as much as possible.
Building A Highly Available Nginx Reverse-Proxy Using Heartbeat
A cluster in computing is a term used to describe a group of closely linked computers often appearing as a single entity to the outside world. There are various types of clusters—high-availability (HA) clusters, load-balancing clusters, compute clusters or high … Continue reading
Posted in FLOSS, Published Articles
Tagged Cluster, HA, Heartbeat, nginx, Reverse-Proxy
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Building A Highly-Available Web Server Cluster
nginx (pronounced as ‘engine x’) is a powerful HTTP Web server/reverse proxy and IMAP/POP3 reverse proxy. According to a survey conducted in December 2008 by Netcraft, nginx has grown significantly and has surpassed lighttpd (also known as Lighty). Because of … Continue reading
Posted in FLOSS, Published Articles
Tagged Cluster, HA, Load Balancing, nginx, Reverse-Proxy
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Recovering from lost root password in OpenBSD
Want to recover a lost root password in OpenBSD, type boot -s at the boot prompt in OpenBSD hit enter when prompted for shell and enter vt220 as the TERM. boot> boot -s Enter pathname of shell or RETURN for … Continue reading
Creating and Using MS DOS Virtual Machine in QEMU
Create a disk image of desired size. I chose 50 MB $ dd if=/dev/zero of=msdos622.img bs=1k count=0 seek=50000 Next boot from the DOS boot media. I had a bootable CD image. $ qemu -hda msdos622.img -cdrom DOS6.22_bootdisk.iso -boot d From … Continue reading