via networkworld.com
Network World’s headline was certainly designed to catch a security person’s eye: “Disk encryption easily cracked, researchers find.” In most cases, however, the risk, while real, is less than the headline implies….
via linuxjournal.com
If you come from the world of Windows, you undoubtedly understand the concept of a shortcut. In the Linux world, shortcuts do exist, but they’re generally referred to as symbolic links, or symlinks. They are so named because, like shortcuts, a symlink is really just a symbolic placeholder or link to the file or directory you’re trying to get at.
via redhatmagazine.com
The commands ps and top express CPU time differently. While ps calculates it by “total CPU time” divided by “time task is running”, top shows the value as a percentage of overall CPU time. For ps, this means that the longer a process is running without a high CPU utilization the smaller the value of %cpugets (it converges to zero). For top, this means that it displays this value as share of the CPU time since last screen update and is therefore more accurate in terms of “current CPU utilization”.
via linux-mag.com
For those of you unfamiliar with SSH, it allows for secure encrypted network communication and can replace insecure unencrypted utilities such as telnet, ftp, and the r-commands (rlogin, rsh, rcp). If you still use telnet please put this magazine down right now, go disable the telnet daemon, and install SSH and then continue reading.
via ducea.com
The Unix find command is a very powerful tool, and this short post is intended to show how easy you can achieve something that might look complicate: to find all the files of a particular size. Let’s assume you are searching for all the files of exactly 6579 bytes size inside the home directory. You will just have to run something like:
via linuxhelp.blogspot.com
Now a days, when one installs Linux on ones machine, in more cases than one, there is a trend to create a logical volume and create the file system on this volume rather than creating the file system in individual partitions. I have myself created logical volumes on one of my machines running Linux.
via linuxhelp.blogspot.com
A few days back, when my non-techie friend came to visit me at home, he was amazed to see me booting into multiple OSes (4 to be exact) on my machine. He then wanted to know how I accomplished this feat. I told him about creating partitions and how these partitions play a vital role in installing multiple operating systems on ones machine. But this conversation with my friend set me thinking; why is there so much fuss on creating partitions? I think the primary reason that people face this issue of re-partitioning is because they do not think ahead about their future needs.