11,442 reputation
32955
bio website
location Düsseldorf, Germany
age 40
visits member for 5 years, 4 months
seen 15 hours ago
Software developer, mathematician

1d
comment BIOS continuously pressing a key internally filling keyboard buffer
@Pacerier: You could just remove the keyboard. While this requires some disassembly, on most laptops it's not terribly difficult.
2d
comment How to do secure erase of CF card over USB in Linux?
@D.W.: Yes, that is true. However, accessing bad or remapped blocks requires some technical investment. You will have to replace the the card's firmware with a hacked version (if that is possible), or directly access the flash memory chips. This probably involves soldering and intricate knowledge of the card's internals. Very probably doable, but definitely not for a few hundred dollars. The CIA will most likely be able to pull it off - a nosy person poking through the card, most likely not.
Dec
21
comment Is there any software to analyze and detect 'fake' hi-res images (TIFF when really JPEG, deliberately upscaled images)?
Just a note for GIMP users: GIMP also supports LAB mode; it's under "Colors / Components / Decompose... / LAB".
Dec
17
comment How can I download the certificate of a wireless AP using 802.1X?
Thanks for the detailed writeup. It sounds a bit complicated; but if that's the simplest way to do it, I'll try.
Dec
16
comment Make wpa_supplicant ignore server certificate trust
It should be pointed out that doing this can be a major security risk: When using username/password authentication, the client will broadcast its username and password to any fake AP, making them easy to harvest.
Dec
3
comment Accidentally deleted files from /boot
@user3109672: Just dowload one :-). The installation CDs of most Linux distributions also work as rescue CDs - ideally use the CD you installed from (or re-download it). Failing that, use any modern Linux rescue CD, for example Knoppix.
Dec
2
comment How to diagnose Run-time error 429?
It just might help if you actually tells us which program you are talking about...
Nov
26
comment How to check if a pixel is 100% transparent (transparency level)?
@JoeM: Yes. Actually, that should probably be in the answer. I edited it in.
Nov
17
comment Do text files store their encoding method for later decoding?
@OldGeezer: And BTW, file cannot do reliably detect most text encodings (because that is very difficult). The man page has some information on character set detection - file mostly only recognizes ASCII, UTF-8/16, EBCDIC, and ISO-8859-x. For example, a file encoded in KOI8-R is reported as "ISO-8859-1".
Nov
17
comment Do text files store their encoding method for later decoding?
@OldGeezer: file has various heuristics for determining file type and encoding. Mostly, it looks for certains strings or byte sequences in the file. If you want more specific information, you'll probably have to read the source. Or just ask a separate question :-).
Nov
1
comment How does a server get notified about the HTTP request?
@DhiwakarRavikumar: Yes, ports are just numbers. They are made up by a program or the operating system, they do not correspond to anything in hardware.
Oct
20
comment How to find out if a CPU has an MMU
@PaulA.Clayton: True. However, AFAIK, all common modern OSes use the MMU to implement memory protection, so these OSes do need an MMU for memory protection. Anyway, thanks for the information; I edited my answer to clarify.
Aug
19
comment How do I measure or track the progress of a command on a GNU distro?
At any rate, OP already uses rsync --progress for seeing progress during a copy operation.
Aug
14
comment Can I run MS-Word/Excel when I don't have an internet connection?
Have you tried completely deactivating your network connection? If the network interface is active, but there is no connection, the computer might hang while waiting for an answer that will never come. Try deactivating the network connection under "Network connections" in the Windows configuration.
Aug
1
comment What is a modern alternative to Thinkpad Buttons?
Note that hald is no deprecated, and (mostly) replaced by udev.
Apr
23
comment Refresh Excel document without opening it
Not an answer, but: It looks like you are really hitting Excel's limitations. Maybe you need to write (have written) a "real" program, instead of doing everything inside Excel? The code which Excel runs (VB probably?) could be extracted into a separate program.
Mar
19
comment 'less' command clearing screen upon exit - how to switch it off?
@K3---rnc: Scrolling with the keys definitely works on Debian. Can't say about the mouse wheel. Just ask a question :-).
Mar
19
comment 'less' command clearing screen upon exit - how to switch it off?
@K3---rnc: Hm, that's weird. I use less -X on multiple computers, and scrolling still works. Consider asking this as a separate question.
Feb
28
comment Looking for a Linux or Windows command line .WAV file checker
I took the liberty of adding a quote from the docs. It looks like this tool might answer the question.
Feb
5
comment Editing a .jar with `vim`
@Sathya: Thanks, I just got the message :-).