At the upcoming Hot Chips Conference in late August, Oracle, IBM and Fujitsu are all set to announce the release of new high-performance Unix chips. Oracle is leading the charge, with the expected announcement of its new SPARC M6, which Oracle describes as a “next-generation processor for massively scalable symmetric multiprocessor data center servers”. SPARC […]
When Oracle announced it was discontinuing the development of OpenSolaris, there was shock among the free Unix community. OpenSolaris was popular and had a very loyal user-base and good support from developers, internal and community. A fork of OpenSolaris was quickly announced. A fork of the kernel would become what is known as Illumos. And […]
While we’ve all been deluged with new Linux releases lately, there’s a particular Unix release that flew past almost without getting a brief look at. NetBSD 6.1 was released in mid-May. NetBSD is the Unix of today. And it’s probably about as close to the original Unix as you can get in 2013. More so […]
Protecting files from unwanted deletion is very important security on the tasklist of Unix Administrators. On Linux boxes you can use the chattr command and that works ine on all my Ubuntu based servers. On FreeBSD, this command doesn’t exist. An alternative we use is the chflags command. Let’s give you some examples how chattr work […]
nginx (pronounced “engine x”) is an open-source web server and a reverse proxy server for HTTP, SMTP, POP3, and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage. It is licensed under a BSD-like license and it runs on Unix, Linux, BSD variants, Mac OS, Solaris, AIX, HP-UX, and Microsoft Windows. My test server details: root@FreBSD-Unixmen:/root # uname -a FreeBSD FreBSD-Unixmen 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 root@farrell...
Did you know that Unix and Linux has no concept of a file extension? What is a file name extension? A .txt extension tells us that it is a TEXT file and .pdf extension tells us that it is a PDF file. By following this logic, you understand that a file name extension is the […]
My intent is to introduce new Linux users to the Linux command line shell and make them feel comfortable with the command line environment. What does it happen when you click a button with your mouse? When you click a button a command is executed and interpreted by the shell. What is a shell? A […]
Playing with tools has always been fun for me. You enjoy and learn at the same time. Netcat is a command-line networking tool which is able to read and write data across Transmission Control Protocol TCP and User Datagram Protocol. Originally coded for Unix, it was released in 1996 and has been ported to a […]