7,697 reputation
12253
bio website tltech.com
location United States
age 36
visits member for 5 years, 6 months
seen 21 hours ago

{{Hacker}}

I own a small, successful security consulting business. But by day I work for a really big company, doing really big things.

Nothing I write here represents the views of my employer, nor does it reflect any proprietary or confidental knowledge. In fact, practically all of it was written before I even started working there, so don't get too excited.


Oct
8
comment String search and replace across an entire database
@MDMarra And if that were possible then I wouldn't be asking this question.
Sep
20
comment Good reasons to keep 32-bit Microsoft Windows desktop OSes
@BlueRaja Looks like several were deleted. No, the bullet is not incorrect, and you said so yourself, you just said it was rare. There are several cases where code that loads a 32-bit lib will JIT to 64. Manual assembly loading is one of them. They're uncommon enough that programmers don't know to even look for them, so they show up in production.
Sep
18
comment Good reasons to keep 32-bit Microsoft Windows desktop OSes
@ArenB It takes a while for legacy software to die out, but it happens. There's not a lot of 16-bit software still kicking around, but you'll find it every now and then. (Did you know we did this once before with the 16 to 32-bit switch almost 20 years ago?)
Sep
18
comment Good reasons to keep 32-bit Microsoft Windows desktop OSes
@OrangeDog: Whether or not the issues with 64-bit are outweighed by the advantages, the purpose of the question was to simply identify the drawbacks so that the reader can draw his own conclusions.
Sep
18
comment Good reasons to keep 32-bit Microsoft Windows desktop OSes
@OrangeDog very good point. I'll update accordingly.
Aug
9
comment Could an Internet-connected IP network be NOT registered to a Regional internet Registery (RIR) or any local network registery?
DNS servers (practically by definition) need to be on a static IP. The IP address of the DNS server goes into the global registry. If you want to run a DNS server off a dynamic IP, then delegate a subdomain to your dns server instead.
Aug
9
comment Can't get SSH public key authentication to work
You might also need to chmod go-w ~/ if it isn't so already.
Aug
3
comment Delete files from directory: memory exhausted
@MattBianco updated
Jul
26
comment Sendmail Errors when Sending via PHP
@nojak well then, if you know what you're doing then you set it up however you want.
Jul
25
comment Why couldn't MAC addresses be used instead of IPv4|6 for networking?
@Piskvor It is the responsibility of each vendor to ensure that they do not re-use a MAC address. A vendor is issued a prefix which is not given to anyone else, and that vendor issues MAC addresses within that range. If there are legitimate duplicates (i.e. not manually-assigned) then it is the mistake of the associated vendor.
Jun
3
comment What are DKIM (DomainKeys Identified Mail) and The SPF (Sender Policy Framework)?
en.wikipedia.org/wiki/DomainKeys_Identified_Mail en.wikipedia.org/wiki/Sender_Policy_Framework
May
24
comment Raid array on partition bleeds through to block device
If the end of the partition goes right to the end of the drive, then the superblock will at the end of the drive. If you size the partition slightly smaller, then the code will be able to distinguish easier.
May
1
comment what is the way to remove the REFERRER header that sent by IIS?
The Referer header is sent by your browser, not by your server.
Mar
14
comment Does SpinRite do what it claims to do?
@CamiloMartin: If someone is charging for the information you're given rather than for the work they actually do, then you need to find someone who's a bit more honest. That's like a car repair shop charging for the how far a car will go rather than for the installation of the new brake pads. None of the (highly-skilled) shops I've worked with use that type of pricing scheme; maybe the fed contract has inflated their egos.
Mar
4
comment extract iis saved password
I'm waiting to see if someone puts up a better answer.
Feb
27
comment How many requests can WAMP handle in one second?
run ab against it and find out!
Feb
14
comment Since when the linux host utility ignores /etc/hosts?
nope. checking /etc/hosts is part of libnss, which is a resolution path independent of DNS (and which might not involve DNS at all!)
Feb
14
comment Why didn't my performance increase when I went from 4 disk RAID 10 to 6 disk RAID 10?
@rmalayter: The question was not marked windows when this answer was submitted.
Feb
14
comment Why didn't my performance increase when I went from 4 disk RAID 10 to 6 disk RAID 10?
Linux-vs-Windows server performance has been beaten to death, so I won't rehash all the arguments. But the gist is that unless the benchmark was funded my Microsoft, then optimally-configured Linux (and other Unix variants) tend to be approximately 2x faster on TPC and SPEC benchmarks than optimally-configured Windows Server on equivalent hardware. There are technical reasons for this that I won't go into here. But there is a reason why Google, Facebook, NASDAQ, and most other very data-heavy corporations run on Linux. (And it isn't because of marketing)
Jan
23
comment crontab running as a specific user
Regarding putting sudo in the crontab: (a) sudo su... is generally unnecessary; sudo -u <user> <command> is usually sufficient. (b) sudo will choke on some systems if there isn't a TTY attached (such as when run by cron). That can be fixed in your sudoers file.