7,717 reputation
12253
bio website tltech.com
location United States
age 36
visits member for 5 years, 7 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.


Jul
9
comment Is there an official limit to nameserver indirection?
.com and .net are both verisign. They're the exception. en.m.wikipedia.org/wiki/Verisign
Jul
4
comment Is there an official limit to nameserver indirection?
@JennyD yes, there are several projects out there like that. But I'm building one that hopefully gives better detail and is easier to understand. But thanks for pointing that one out.
Jul
3
comment VPS versus Cloud
...that's far too many quote marks for a sensible answer.
Jul
3
comment Is there an official limit to nameserver indirection?
@HåkanLindqvist I'm actually building a tool that looks for problems in DNS configurations. This is one the of the problems to look for. The question is, how deep should the system recurse to look for further problems before just giving up.
Jun
17
comment Unable to install phpMyAdmin via yum (remi)
Looks like the package or dependency is broken. Why don't you just download it from source? The package doesn't provide any useful that the vendor's tar.gz does not. Also, use Adminer instead of PMA. Faster, simpler, safer.
May
16
comment Are Cisco admins expected to understand classful networks?
I'm just saying that the terminology is popular with a very, very, very small subset of the industry. And completely coincidentally, they all seem to be Cisco Certified Engineers.
May
16
comment Are Cisco admins expected to understand classful networks?
"Class C" isn't any more clear than "/24". You have to learn /24 anyway, so calling it "Class C" just serves to confuse people who aren't familiar with the terminology while at the same time making yourself look uninformed to people who are. It's a bit like referring to the "OSI model of TLS encryption" -- that is, (A) most people don't even know what the OSI model is, and (B) apparently neither do you.
May
15
comment Are Cisco admins expected to understand classful networks?
The fact the CCENT uses A/B/C as shorthand for /8 /16 and /24 measurably diminishes the credibility of the certification in my book. Would you trust a pilot if the pilot's exam questions he answered used the word "handlebars" to refer to the control yoke or "railyard" to mean "airport"? Should you be allowed to write exam quiestions if you don't understand your own industry?
Apr
22
comment Multiple users, Multiple servers, SSH key management
Puppet? Chef? NIS?
Oct
15
comment Give user permissions to change system time on Windows Server 2012 domain controller
So, just for posterity, WHY do end users need to change the clock?
Sep
8
comment Protect ssh server
That sounds like portsentry
Sep
8
comment MongoDB getting OOM killed
Duplicate of stackoverflow.com/q/6861184/86060
Jul
27
comment Resize / mount point (but it is not in lvm)
Resising your root partition (or any valuable partition really) is not something that should be attempted until you have a solid understanding of how the underlying technology and all the associated tools work. This is something that is absurdly easy to screw up and can quickly become non-salvageable.
Jul
1
comment Unix Shell/SSH config to allow TCP port forwarding without showing a command prompt
@200_success edited to answer
Jun
29
comment What is the different of 64-bit Architectures? Why there is more than 1 standard?
Indeed, if I were to give this question as a homework assignment, I would have worded it more clearly. Students have a hard enough time as it is.
Jun
27
comment tc u32 — how to match L2 protocols in recent kernels?
@brownian you think doing exactly the same filtering in iproute2 will be higher performance? It's the same kernel, same code path, same algorithms. As long as you don't accidentally do something like turn on connection tracking, you shouldn't see a difference. *tables can impact performance because it can do a lot of complex stuff. But that doesn't means that it will.
Jun
3
comment What to use instead of FTP
@Stephane FWIW, there is no rule against linking to projects or software as part of your answer unless you work for the organization responsible for creating it. In which case, you can still link to the project, you just have to disclose your relationship (and not be spammy about it).
Jun
3
comment What to use instead of FTP
I don't think you're wrong, but you end up with a lot of conversations that sound like this: Them: The ___ keeps ___ing. You: Then stop using FTP. Them: What do I do instead? You: Well... have you considered a job in the food industry? --- I'd like to be able to help a bit more than that.
Jun
3
comment What to use instead of FTP
@Stephane if you know of a simple way (or product) for a novice to add SFTP access on Windows servers without requiring shell access, then by all means post it as an answer. That's what we're here for, after all.
Jun
3
comment What to use instead of FTP
@MichaelHampton I don't recommend running Windows at all. Which is why this question isn't about my servers.