7,717 reputation
12253
bio website tltech.com
location United States
age 36
visits member for 5 years, 7 months
seen Dec 24 at 21:48

{{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.


Aug
6
answered Show me your skeleton
Aug
6
answered PHP 5.3.2 or 5.2.14
Aug
6
answered Why is (ana)cron not running any of my jobs and giving no error output?
Aug
2
awarded  Popular Question
Jul
31
answered Remote server hangs, gets stuck. How to debug?
Jul
31
comment .htaccess to deny access to most xml files
Care to specify what the error message is? You'll find it in your error_log.
Jul
31
comment Where is apc.php?
I fail to see the sense to piping the output of find to grep in this instance, since find will only return names that contain the searched-for string.
Jul
31
comment Nginx rewrite URL only if file exists
This checks to see if the file exists, and if that test fails, it redirects to new_images. What happens after that is not specified here.
Jul
30
comment Virtual Machine memory usage not appearing in TaskManager
Unfortunately, there is no single number that indicates "how much memory" a process is using, since you get into complications like shared memory, file-mapped memory, paged-out memory and a few others. Here's a good explanation of a few concepts: stackoverflow.com/questions/1984186/…
Jul
30
comment Benefits of Gigabit uplink for high traffic webserver?
Not necessarily. Your cost/benefit of using EC2 for a simple web installation is not particularly appealing. Unless you need the benefit of dynamic server allocation, you can get 2x to 3x the performance per dollar running on dedicated hardware (at the right datacenter).
Jul
21
answered Can a malicious user bypass a ssh authorized_keys forced command?
Jul
10
comment PTR record (rDNS) for multiple domains on a shared IP address
@Warner: the solution would be to make the MX record match the hostname, then. The MX record (target) doesn't need to relate at all to the email destination address.
Jul
9
comment Terminal Width issues with Linux Screen
+1 for an interesting and useful solution. However, what's the overhead of screen that we're avoiding? I never knew that screen was that heavy.
Jul
9
answered PTR record (rDNS) for multiple domains on a shared IP address
Jul
9
answered IPTables not blocking an IP address
Jul
7
answered Do I need a VHost for both Nginx and Apache2?
Jul
4
comment Linux server strategy
On the subject of repeatability: Centos does have a very easy to use "kickstart" function, allowing you to to very easily automatically deploy identical servers. However, apt (ubuntu) has a nifty feature to make it easy to synchronize the packages installed on existing servers.
Jul
3
comment Frequently accessed files and I/O usage
As long as you have enough memory free, Linux will cache your most recently used files in RAM, creating similar performance as with a ram disk.
Jul
3
answered Why is it important to monitor disk I/O?
Jul
3
answered Linux server strategy