Reputation
2,940
Top tag
Next privilege 3,000 Rep.
Cast close & reopen votes
Badges
2 11 25
Impact
~168k people reached

Jul
25
comment 65536 +1 Connection on a system
If you really need to connect more than 65536 connections between two machines, then you can set up the machines to use multiple IP address. Each IP address you add to the two machines increases the maximum number of connections quadratically (at least in theory, you'll more likely meet other problems first).
Jun
20
comment Can a technician access my PC at any time?
@TobiaTesan: Yes, it is not unusual for mom&pop's repair shop to install remote desktop for support purpose. The less computer literate people are usually also the ones that have a lot of easy-to-solve problems that can be solved remotely (and they're also the ones that are likely to not fully understand what they're agreeing to, even when the tech support tries his best to fully describe what remote support means).
Jun
20
comment Can a technician access my PC at any time?
@TobiaTesan: it's not that uncommon, if you bought the device from them, bought a support contract, or if you're on an office with support contract with the technician. However, it would be a breach of trust if this come without the owner's explicit permission/consent and without making them fully understand what it means.
May
16
comment Hibernating and booting into another OS: will my filesystems be corrupted?
Virtual Box save state is totally different from hibernation. Save state is a virtual machine feature, not an OS feature. The OS is totally unaware when a save state is happening. The save state isn't stored in the virtual disk image, but in another file. Virtual Box actually can restore saved state to a different machine, it's called teleporting.
May
9
comment Hibernating and booting into another OS: will my filesystems be corrupted?
@Rolf: NTFS with ntfs-3g driver on Linux. Also, this was purely data partition, except for applications like Firefox/Thunderbird, which I know has warnings for unclean shutdown, and which I would always close before switching OS.
Apr
16
awarded  Famous Question
Apr
6
comment What is the exact use of a MAC address?
@Pacerier: and how is that relevant? My main point is that MAC is always statically assigned, whether you use the factory default or whether you assign it before connecting to the network is besides the point.
Feb
27
comment Why are we still using CPUs instead of GPUs?
Not optimistic, it's not zero bandwidth overhead. If a processor with a GPU architecture runs the entire show, there is nothing that needs to be moved, the GPU memory is the main memory. There is no transfer overhead to be talked about in the first place because there is no transfers. This is not hypothetical by the way, AMD's APUs uses HSA (heterogenous system architecture) with unified main memory which allows zero-copying between the CPU and GPU.
Feb
27
comment Why are we still using CPUs instead of GPUs?
@Dr.AndrewBurnett-Thompson: that's because that is irrelevant to the question. Currently, GPU is considered an auxiliary processing unit, that's why moving data from/to a GPU is necessary and expensive. If we treat GPU as the first class processing unit, there won't be any need to marshal data between the main memory and the GPU memory.
Feb
22
comment Is there a way to completely eliminate any 32-bit support on a 64-bit windows?
What benefits do you think you could get by preventing non 64-bit aware program from running?
Feb
22
comment Is there a way to completely eliminate any 32-bit support on a 64-bit windows?
That's not the root reason, why do you need to experiment with 64-bit only environment? All x86_64 CPUs includes native support executing 32-bit code, it's not something you can turn off. There is no emulation, no mode switch, they are run natively because the 64-bit instruction set is a superset of the 32-bit instruction set. This is of different nature than 16-bit windows applications, which is a DOS mode that had to be run on a different CPU mode (Legacy Mode) that has no memory virtualization. Essentially, 16-bit application was running on a different operating system.
Feb
21
comment Is there a way to completely eliminate any 32-bit support on a 64-bit windows?
What's the reason for doing this? Why do you want to disable 32-bit? I'm sensing that you're actually having an X problem, but since you think that Y will solve the problem, you're instead asking for Y. What's the X?
Feb
18
comment Could local ISP capture my location whenever i launch a VPN to a VPN server?
Now that your ISP also have a physical cable or FO or base tower laid out between their gateway and your physical location. If they want to find out where you are, they don't need to determine your location with IP addresses as this is more effective way to locate you.
Feb
18
answered Is there any way to bypass ISP-based redirection of webpages after credit finished?
Feb
12
revised Why are we still using CPUs instead of GPUs?
added 58 characters in body
Feb
9
comment Video upside down, but only on certain computers
@Luca: I didn't call it wrong orientation. It's just upside down according to the default that's used by the manufacturer. The device do use the accelerometer to detect the down gravity (not gyroscope, as gyros can only be used to detect change in orientation), but the detected rotation only affect the metadata, rather than the image elements being transformed at record time.
Feb
4
comment Difference in whitespace between 2 files on linux
Vim shows ^M only when it misdetects a Unix line ending but the file actually has DOS line ending. Usually this happens if you've got mixed line ending in a single file, e.g. applying a patch with different line ending than the original file. When vim detects DOS line ending correctly, it wouldn't have shown the ^M.
Feb
3
comment Will applications running in root mode be able to overwrite OS's or other program's memory section?
It should be the same in Windows. The kernel mode vs user mode distinction is a x86 feature, programs running in Ring 0, i.e. kernel mode, have full privilege over everything, including the memory and MMU.
Jan
18
awarded  Taxonomist
Dec
25
comment Why does Google call Thunderbird “less secure”?
@Nemo: changing password for Google Account do require reauthentication with password, IIRC. The cookie alone cannot be used to change password.