I’m using 4G by China Mobile, but the DNS it provides really sucks. Changing DNS from Cellular Data on a not-jailbroken iPhone is impossible so far as I know (I tried mobileconfig but can find any working options).
The first idea is pushing DNS from a PPTP server, which I wrote: Notes: PPTP/L2TP Server on Ubuntu.
I can create two connections on my iOS, one set default route, one not. All users share a same setting from PPTPd, it’s almost impossible if I want to use a different DNS in these two connections, changing default pptp port from 1723 to others is not as easy as it is on windows.
Don’t forget that PPTP is what GF*W likes. Continue reading “OpenConnect DNS Only + Google Only” »
Address space layout randomization (ASLR) is a computer security technique involved in protection from buffer overflow attacks. In order to prevent an attacker from reliably jumping to a particular exploited function in memory (for example), ASLR involves randomly arranging the positions of key data areas of a program, including the base of the executable and the positions of the stack, heap, and libraries, in a process’s address space.
Mach-O, short for Mach object file format, is a file format for executables, object code, shared libraries, dynamically-loaded code, and core dumps. A replacement for the a.out format, Mach-O offered more extensibility and faster access to information in the symbol table.
Mach-O was once used by most systems based on the Mach kernel. NeXTSTEP, OS X, and iOS are examples of systems that have used this format for native executables, libraries and object code.