Comments for Super User Blog The Super User Community Blog Mon, 05 Dec 2016 07:34:06 +0000 hourly 1 Comment on WTFriday: What happens when Windows runs out of Disk Space? by Roland Pihlakas Mon, 05 Dec 2016 07:34:06 +0000 NTFS does free some reserved metadata space when the disk gets full since with full disk this reserved metadata space would not be of use anyway.

A bigger curiosity for me is that NTFS also often eats away lot of space that really should be free – to the point of having zero free space left. That “eaten away” space is miraculously reclaimed after reboot so much that sometimes even over 100 GB may be free again, lets say for example on a 600GB drive. Closing open file handles to big files does help sometimes too, but not as much as rebooting.

Comment on Linux permissions demystified by Swivel Fri, 02 Dec 2016 07:19:57 +0000 Spelling error…

Getting sticky! There are three special permissions: SetUID, SetGID and Stciky. They have different meanings when used on normal files compared to directories.

“Sticky” is spelt “Stciky” in the blog post (see snippet above)

Comment on Geek on Sound (or.. does anyone really need a sound card these days?) by Aditya Kashi Tue, 29 Nov 2016 02:18:48 +0000 Nice post, but are you sure a DAC is what you say it is? AFAIK, DAC stands for digital to analog converter and is part of any sound card. It’s in fact the most basic part of a sound card as it’s needed to output analog signals for consumption by headphones or speakers. Almost all motherboards have them.

]]> Comment on Windows 7 Network Awareness: How Windows knows it has an internet connection by GrandpaGotRoot Sat, 12 Nov 2016 17:02:30 +0000 Most of us instinctively knew what the author meant and simply passed over the typo. But if “your” going to play Internet grammar Nazi, then you probably should know the difference between “your” and “you’re,” especially when offering unsolicited grammatical advice.

your vs. you’re = English 101 🙂

In other words, judge not, lest ye be judged…

Comment on Best of both Worlds Part II: Installing the Optical Bay HDD Caddy by Austin Wed, 19 Oct 2016 15:00:51 +0000 Pavol, Most notebook ODD connectors are only SATA not II or III this means using a solid state in its place wouldnt make much sense because the speeds will be bottleneck’d by the hardware. your best bet would be putting a SSD in the original drive spot and putting a HDD for access files that dont require fast speeds in your ODD spot.c

]]> Comment on Listen to Pandora in your terminal via Pianobar by Josh Wed, 12 Oct 2016 21:14:13 +0000 Sorry, forgot to mention that notify is only appropriate for OSX

]]> Comment on Listen to Pandora in your terminal via Pianobar by Josh Wed, 12 Oct 2016 21:13:49 +0000 no need for all the growlnotify stuff. Try this notify script instead:

Comment on Are all Windows Updates really necessary? by Ian Mon, 03 Oct 2016 00:50:59 +0000 what is it with these windows updates, more than 2 hours this AM, then more this evening.

]]> Comment on Windows 7 Network Awareness: How Windows knows it has an internet connection by sancho.s Thu, 22 Sep 2016 01:30:57 +0000 This may be also useful

]]> Comment on Better Know your Wireless Router by Stuartbe Tue, 21 Jun 2016 03:34:27 +0000 This is a good post but with one or two incorrect pieces of information and one or two missing ones, most of them have been covered by other posters but a couple I feel need correcting or highlighting.

MAC filtering has often been a point of contention in posts about wifi security. Whilst I commend the author on pointing out that MAC addresses can be changed it is not the case that a valid MAC address needs to be known in order to subvert the so called “security” that MAC filtering offers. You can in fact simply clone an existing mac, if the station owner happens to be operating at the time this will cause a MAC conflict. Different hardware and software of the stations handle this in different ways and very few will actualy do anything at all. Sadly these days software and firmware is rushed out the door to meet target deadlines and is rarely tested properly. It is not realy feasible to block the MAC as there is no real way to determine if you are blocking the genuine device of the spoofed one. Company’s do not want support calls so will simply go with the option that will generate the least ammount of support calls. At best MAC filtering is only of use to prevent an unwanted station accidentally connecting!

The best advice I found in this post is to employ the highest level of packet encryption the devices support and it was refreshing to see CCMP described correctly for a change.

The last piece of advice I can offer as indeed the author did is to employ the most random complex key that you can. The only issue this can sometimes raise is that not all software and firmware will support the full 63 characters laid down in the standards. In my experience I have found 60 characters has best security whilst avoiding any bugs thay may bite!

I would also recommend using a group key update interval of a non standard value such as 26 or 47 minutes for example though if you are employing CCMP with a good lengthy PSK and most certainty not using the factory SSID then this is a little overkill and within the realm of the foil hat brigade!

In conclusion this is one of the better articles I have come across with a good deal of thought and effort put into it. A refreshing change from the usual “turn on mac filtering and use your dogs name as your PSK” posts that sadly still wander arround the internet.

A big thumbs up from me for the author. 🙂