ext4 recovery: superblock backup numbers
Good time of day! After a horrible failure of the HDD, I got myself in a situation where I ca ot mount the disk - it complains about the superblock issues. I found a great article that describes how to restore superblock from a backup. When I run: sudo mke2fs -n /dev/sdd1 I get: Superblock backups s...
What does the Fi in Wi-Fi mean?
Wi-Fi isn't short for anything Source: http://www.webopedia.com/DidYouKnow/Computer_Science/wifi_explained.asp It's simply a trademark. It does not stand for the commonly thought "Wireless Fidelity" (or your Fi guess, "Frequency Interface"). The term Wi-Fi, commercially used at least as early as Aug...
Visual Studio recent file path
We use Visual Studio for coding across multiple solutions and workspaces. One way that I was easily able to reopen a solution in a different workspace than one I have open was to right click the Visual Studio icon and there would be a list of the recently opened solutions. This worked great! The iss...
Dell latitude - headphones stop speakers to work
I recently bought a Dell latitude E6420 i5-2520M 8GB and I am experiencing a very a oying issue with the speakers. The sound coming from the speakers worked until I plugged in the headphones jack into the computer for the first time - after that sounds comes only from the headphones and the speakers...
Driver for ZEON2 94V-0 PCI card?
I need to use a PCI card with a parallel port on it with my PC but I am not able to find a driver for it, so, how can I use this card? The only information I can read from the card is ZEON2 94V-0 on the backside and PCI-1284on the front. My OS is Windows 7 with 64 bit. Is there a way to use such a c...
uTorrent streaming fails to keep up with small piece sizes
So I start downloading a 2GB video file that lasts for an hour with a download speed of 1MBps. the piece size of the torrent is 512kB. uTorrent then queues 15-20 pieces to be downloaded simultaneously. The download speed hits 1MBps max I have and all is great. And then I decide I want to watch the f...
Looking for command line values for an older (9.22 beta) 7zip
Better yet, is there a help file for the older 7zip utility? I want to test some PW recovery tools (build encrypted zip w/ known PW). This is probably trivial but starting from a 7zip.exe that has no GUI how do I specify AES256? and / or what values does the -t switch take? What are the 'types' allo...
UnknownHostException in hadoop on CentOS
I received this error when I tried to run the dfsadmin command: bash-4.2# bin/hdfs dfsadmin -report report: java.net.UnknownHostException: locahost Usage: hdfs dfsadmin [-report] [-live] [-dead] [-decommissioning] Please note there seems to be a typo: locahost instead of localhost I just started lea...
Chef Node Name in Template
I'm trying to set a config file on my server at bootstrap to the value of the Chef node name. Here's my code: log "Node name: #{Chef::Config[:node_name]}" template "/etc/sysconfig/network" do owner "root" group "root" mode 00644 source "network.erb" variables( :myhostname => Chef::Config[:node_name]...
View powerpoint online while prevent users from saving it
My company currently has a number of powerpoint-based trainings. While we want these to be accessible and viewable by our client, we do not wish for our client to be able to distribute the material. While we have expressed the need to keep the material private and applied the appropriate markings, t...
Disable NFS sharing when the host is Windows
Our VM works nice on Linux, but on Windows, I want the sync_folder to be off (we'll code remotly on the machine, it'll be faster) Is there a way to execute this code on OSX & Linux WHILE ignoring it if the host machine is Windows ? config.vm.synced_folder '.', '/srv/app', type: 'nfs', mount_options:...