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16h
awarded  Custodian
16h
reviewed No Action Needed What would cause NFS file move/delete operations to fail?
16h
comment Airmong-ng detecting driver but not chipset
How about editing your question to show the airmon-ng invocation, and output. That will help us understand the problem.
22h
comment routing problem - arp
Add some information to your question. Do ifconfig tun3 and ifconfig virbr1 and put that on your question. As your question stands, there's no way to answer it.
1d
comment Is the return value “-1” of the function socket close() method possible?
If the code I write is explicitly single-threaded, are there "background" threads (for lack of a better word) that execute without my code starting them? That is, in a program that never calls pthread_create(), should I think about the EINTR situation with respect to closing a file descriptor?
2d
comment Why signal function is not able to call my signal Handler?
@Kalu - if you had your child process doing a getppid() system call, you might catch PID 1 as the parent PID, if the forking process exits fast enough, and the kernel's scheduler cooperates.
2d
comment Why signal function is not able to call my signal Handler?
You could also use the pause() system call instead of sleep(), to allow time to do a few ps -ef and check PID -> PPID relationships without hurry.
Jul
23
awarded  Nice Answer
Jul
22
comment Bash script strange behavior - script does not act as manual commands
This looks like you've got some difference in environmental variables or their values between your login shell, and the /bin/bash that runs the script. Can you run printenv in a script and see if that matches printenv output from the interactive (login) shell?
Jul
22
awarded  process
Jul
21
answered foolproof way to detect if java process is running
Jul
21
comment r8168 connection drops randomly
this seems like a hardware problem of some sort, either with the cable or the ethernet interface itself. It's not unheard of for on-board ethernet interfaces to fail. You might have to get a USB ethernet interface and use that instead.
Jul
10
comment r8168 connection drops randomly
now I have a new theory. Check the IP address of the ethernet interface while it works. After it quits working, check again. Maybe dhclient or dhcpcd is giving up on the lease or getting a bad lease or something. You should also try ethtool and/or mii-tool while it works, and after it quits working. Some difference in output might clue you in.
Jul
9
comment How to kill a task that cannot be killed (uninterruptable?)
How about adding the output of ps -l -p 31207 to see what the "WCHAN" column holds. Beyond that, the question you reference has the answer: if you can't kill a process, it's waiting on network filesystem, there;s a kernel bug, or there's a hardware problem.
Jul
7
comment r8168 connection drops randomly
This is odd, but it seems to me that you might have a bad cable, a cable with an intermittent short or something. Can you try this with another cable?
Jul
6
answered Internet connection lost after installing dnsmasq
Jul
2
answered How to write a script that can take input from stdout
Jun
30
answered Is there any risk of a race condition when runing ps?
Jun
29
comment How can I count the number of whitespace characters in a file?
@Alison - your method might seem indirect, but I don't think that's the case. No matter how you do this task, you have to have a program that examines every character (every byte) in the file. There's no short cuts for that I can see. "Deleting" isn't really the case, as tr actually just passes all whitespace characters down the pipe. It's just selective about what characters it passes, rather than "deleting" anything.
Jun
25
comment Can tarring files improve compression?
The "random" file contents are a problem. They're incompressible. Use two different large text files to get a better idea. A related idea here is "normalized compression difference". You might take a look at ims.cuhk.edu.hk/~cis/2005.4/01.pdf to see what kind of problems you can encounter doing this kind of testing.