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May
22
comment Command vs program?
But useradd isn't a shell built-in. The web site just said "command", not "built-in command". How is this explanation relevant to this question?
May
11
comment Cannot write to /home directory even as root user
This question still doesn't belong on SO, it's not a programming question.
May
8
comment What happens to TCP connections when I remove the ethernet cable?
@SiyuanRen Keepalives practically never detect the failure immediately. In most configurations, keepalives aren't even sent unless a connection has been idle for a long time (I think 2 hours is the default). And once they're sent, they don't detect the failure until you reach the retransmission limit, which can take a couple of minutes. If you want quicker detection of failure, you generally have to implement application-level keepalives.
May
8
comment What happens to TCP connections when I remove the ethernet cable?
@Brad I don't think it has ever been possible for TCP connections to persist across a reboot. A TCB relates a socket tuple to an I/O stream that's open in some processes. When you reboot, all the processes are gone, as are all the I/O streams they had. TCP is even required to assign initial sequence numbers randomly, to minimize the chance that a retransmission from before the reboot will appear to be a valid segment in a new connection that happens to use the same port numbers.
May
5
comment Cannot write to /home directory even as root user
Edit the question
May
5
comment Cannot write to /home directory even as root user
You showed the permissions of a directory named user, not home. Try ls -ld /home to show the directory itself, not its contents.
May
5
comment Cannot write to /home directory even as root user
Please request migration to unix.stackexchange.com
Apr
16
answered Suppress extraction of __MACOSX directory when unzipping
Apr
16
comment File size is different in unix servers but count matches
Compare the outputs of od -c p01 and od -c p02
Mar
9
comment how to list current path mode?
Why not just ls -lid /data/db_1 if you know the name?
Mar
6
comment how to list current path mode?
Who says he's trying to parse the output, I think he just wants to view it.
Mar
2
revised Open a new tab/window in an existing Firefox instance on Linux
deleted 2 characters in body
Mar
1
revised Open a new tab/window in an existing Firefox instance on Linux
Put back single-dash options, add link to Mozilla documentation
Mar
1
comment Open a new tab/window in an existing Firefox instance on Linux
@woohoo Not according to developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options, it shows just a single dash.
Feb
7
comment Forward Mac OS X apps
No, because OS X apps don't use X as their windowing API. You'll need to use a remote desktop client like VNC.
Feb
7
comment Why can't I kill this process on Linux?
I think you're confusing orphan processes with zombie processes, but they're unrelated.
Feb
6
comment Why can't I kill this process on Linux?
Where do you see <defunct> in his ps output? What does that have to do with this question?
Feb
6
comment Why can't I kill this process on Linux?
A process with parent PID 1 is not a zombie. A process gets this parent when its parent is killed before it is. So his killall is apparently killing the parent, not the process he wanted to.
Jan
30
comment Remote desktop options for modern linux
I've used VNC with Macs across the Internet. As long as both locations have high-speed Internet connections, it works fine. But I think you're right about it just sharing the physical screen, not create a new virtual desktop.
Jan
30
comment Remote desktop options for modern linux
What about VNC?