Eiwatah4

Just generally, don't write SQL queries as strings. An ORM is one option, language-level extensions another. But for that you need some good macros in your language - or convince the maintainers of your compiler to add it to the language (like Microsoft did in C#).

There is a relatively recent audit[1] of EncFS with some damning results. I really wouldn't use it.

[1]: https://defuse.ca/audits/encfs.htm

Internet Navigator

The CTFs I've played usually had a good mix of web stuff and binary exploitation.

Also, the best way to learn this stuff is to do it. Even if this seems out of your league, I'd suggest to just join a team and start playing - if that kind of thing seems interesting to you.

You don't have to apply the CBC mode to complete files. If it is secure for a 1 MB file, I don't see why it would be insecure for 100 parts of a 100 MB file.

If you manage to merge small files into the same blocks, you even gain some privacy because the server can't even tell the number of files anymore.

[1] also has a discussion of the trade-offs of the different modes of operation for whole disk encryption. That seems related here because nobody wants to rewrite the whole disk after changing the first byte.

1: https://en.wikipedia.org/wiki/Disk_encryption_theory

You do have some information in the browser you can't get to from the outside. For example, the filter with the most hits for me is "@@||192.168.$xmlhttprequest", which whitelists XMLHttpRequests to 192.168.*. A proxy can't really tell the source of a HTTP request. But that kind of thing is sometimes the only indicator telling the difference between an ad and useful content.

What if someone hacked your server and stole, then deleted the private key? (Backing up private keys is bad practice.)

What if the CA notices they issued a fraudulent certificate?

> In my opinion, most of TCP's semantics arise not out of the network, but rather the data itself. I can't have packets getting lost in the middle of an SSH session: it just doesn't make sense. My keystrokes are a stream of data that must be in order, and must be delivered: thus TCP.

Mosh[1] is basically (a better) SSH over UDP. It fares a lot better than SSH on mobile connections. It does away with hanging connections and such nonsense.

1: http://mosh.mit.edu/

If Github would only host git repositories, you'd be right. But people use Github for the issue tracker, source browser, code review system. Those are just as centralized as the svn server. And in my opinion, they are at least as important as a source control server to get things done.

It isn't the default for most people. Download a browser and OS localized to German, French, or British English and Accept-Language defaults to that instead of "en-US".

What's stopping the attacker from reading the user's browser data and replaying it to Google?

For some reason, the #content element is hidden with a `display: none`. Disable that and the content shows.

Either that, or a race condition.

Gcc doesn't have such a warning. Clang has it, but it has to be explicitly enabled. (It's not even in -Wall or -Wextra.)

In Rust, (right now) you can choose between a 1:1 or a N:M mapping between OS threads and Rust tasks. With N:M threading, the runtime necessarily does (some of) that internally.

That works just fine. But if you're working on a big project, a full new download can take a while.

My experience with cgroups is that it's incredibly difficult to get them to do what you want them to do. But systemd seems to be changing that, so maybe their use will get more mainstream soon.

It is for sysadmins. And those are probably Canonical's biggest source of income.

> I don't know how other similar languages deal with GUI. It's always sort of hairy, obscure code when you look at it closely.

The best languages for GUIs I've seen are specialized declarative DSLs. Things like QML, XAML, JavaFX FXML, XUL, and even HTML. Anything else very much sucks, in my experience.

When there are too many messages, rsyslog will drop them in the default configuration, too.

http://www.rsyslog.com/tag/systemlogratelimitinterval/

Who says the function call actually happens? If the function is short enough, they are a very good candidates for the JIT to inline. If they aren't short, the overhead of calling the function shouldn't matter much anymore.

C has variable sized arrays. http://pastebin.com/BEgDNAhu That's no longer backward-compatible to C89, though.

You don't have to simulate multidimensional arrays in C. It's just easier than wrapping your head around the weird syntax required to pass them around: http://pastebin.com/JTjQMfxr

Yes, the 2-4 diagnoses he came up with in the first 35 minutes were always wrong. Only then did he get it always right.

toString() blows up on a null value, the + operator does not.

I've written similar Java code for that reason.

Tuition was common for a while, but it isn't anymore. Lower Saxony is the only state where you still have to pay it and they're abolishing next year [1].

[1] https://de.wikipedia.org/wiki/Studiengeb%C3%BChren_in_Deutsc...

$ 5000 seems way too much.

50 TB of traffic would cost something like $ 200 (if all downloads were from the US or Europe) to $ 450 (if all of were from South America) according to this page: https://aws.amazon.com/cloudfront/?navclick=true#pricing

That's still a lot of money, of course.

I had similar problems, and found a work around that works great for me:

bash is configured as my default shell. So every program that runs my default shell and just assumes it can use POSIX syntax, gets what it wants (even though it should really just use /bin/sh).

My terminal on the other hand is configured to ignore my default shell and run fish instead.

I also have a line in my .bash_profile (meaning it only runs for login shells) that checks whether it's running in a virtual terminal and in that case exec's fish in a new tmux (because tmux is a terminal emulator, which means that any bash instances within it won't know they are in a virtual terminal and behave like a normal bash).

Is there any chance for that most-used software to be secure if the underlying OS is full of holes?

(I'm not completely sure myself. But I'd rather err on the safe side.)

Afaik, as long as a weak cipher is enabled on both client and server, a MITM attacker can force it to be used. It involves manipulating the handshake to tell both parties the other one doesn't support any better cipher.