With syslog error logging beign expired in some Linux distributions like arch Linux, I am looking for some way to log error with systemd but I couldn't find any documentation or resource about it. If you know about error logging with systemd please help me.
If you need to log something from your application just print to stderr in a way like:
#include <systemd/sd-daemon.h>
// some code here
fprintf(stderr, SD_ERR "Some error meassge from the app");
// some code there
If you want to the message type at the command prompt:
$ systemd-journalctl
See this and that and that.
Related
error screenshot
I just installed Minix and tried to use mined a shutdown function. I got the error 12. I tried to google it, but I couldn't find anything. How can I change shutdown's source code?
p.s. I also tried to cd /shutdown but it didn't worked. and I couldn't vi /shutdown and I googled "Minix segmentation fault" and I found nothing.
shutdown is a binary file with the executable code. mined was probably not able to deal with such a large file. The file you want to edit is named shutdown.c.
I've been trying to setup Eclipse for some C developing. I manage to get the example "hello world" program (provided by Eclipse) to compile, however I am unable to run or debug it. Since I am able to compile, I assume that the setup for the compiler is correct, I can also find the executable file in the workspace (which will not run manually).
While trying to run it through Eclipse I get the error "Error Starting Process - Launching Failed, Cannot run program".
While trying to debug it from Eclipse, I get the error "Error in final launch sequence: Failed to execute MI command: -exec-run" and "Error creating process %path to executable%(error 5)".
I've tried changing workspace to one that has no spaces and to reinstall the compiler (MinGW) with no success.
If anyone could provide some insight on the problem I'd be very grateful.
Edit: Attempting to run the executable returns the following error: "Windows cannot access the specified device, path or file. You may not have the appropriate permissions to access the item." This is strange as I am running it as an admin on my machine.
Furthermore, attempting to run the executable from an administrator permission level command prompt window returns "access is denied".
It turned out my anti-virus software was blocking the file's execution, disabled it and the program ran just fine.
I am running a Debian Jessie server and want to log some custom messages using syslog. I added the following line to rsyslog.conf
local0.* -/var/log/mojosound.log
When I use the syslog function in my c program with this syntax:
syslog(LOG_LOCAL0, "Test Message");
I see the mojosound.log file created and updated each time I run the sample program. However, if I try and add a priority to the command, the message goes nowhere that I can find.
int priority = LOG_MAKEPRI(LOG_LOCAL0, LOG_INFO);
syslog(pritority, "Test Message");
There are no other references to local0 in the conf file and no other rules that look like they should matter.
I am thinking that it must be an issue with my conf file but I cannot find anything in the rsyslog documentation that would point to what it is.
Any ideas?
rc.local was killing the rsyslog service at the end of startup. Took a while but finally found it.
I am using Kinetis Design Studio v 3.0 and am trying to launch a C application on my FRDM-K64 board. The project builds just fine; however, when I try to debug, I get this error:
Error in final launch sequence
Failed to execute MI command:
-exec-run
Error message from debugger back end:
Don't know how to run. Try "help target".
Don't know how to run. Try "help target".
I haven't a clue why this is happening. Other projects (such as the "bubble" example) launch just fine, and I am using basically the same launch configuration. I'm using Segger J-Link, although I tried using OpenOCD as well and got the same message. Any ideas of how to fix this?
I solved the problem--apparently my software needed to be updated. So if anyone is getting the same error, be sure you have tried checking for updates.
I want to monitor NTP error message to catch synchronization fail like network unreachable, server error etc..
When I add logconfig =allall in /etc/ntp.conf, and restart ntpd, trying to get more information when error occurs, but the output information is not enough for me to monitor.
But, if I run ntp in debug mode, like "ntpd -u ntp:ntp -p /var/run/ntpd.pid -g -D 4", I can get more detail information.
Could I just modify ntp config file to do the same thing as debug mode?
By the way, logconfig seems not written on man page.
Thank you!
You don't say which OS you are running this on, or trying to configure this for but... if its a linux OS then have a look in the following file.
/etc/sysconfig/ntpd that is the default options file which is read when the daemon is started. My default config contains OPTIONS="-u ntp:ntp -p /var/run/ntpd.pid -g"
You should be able to modify that to suite your requirement of additional logging.