sonntex / sysklogd Goto Github PK
View Code? Open in Web Editor NEWLicense: GNU General Public License v2.0
License: GNU General Public License v2.0
Important information --------------------- The included version of syslogd behaves in a slightly different manner to the one in former releases. Please review the following important differences: * By default the syslog daemon doesn't accept any message from the syslog/udp port. To enable this add "-r" to the command-line arguments. You _have to_ add this on every host that should run as a centralized network log server. You also should take a look at other new command-line arguments: "-l" and "-s". The syslog daemon by default does not forward to a remote host any log messages which it received from a remote host. This is an attempt to prevent syslog loops. If you desire this behavior the -h command-line switch can be used to enable this behavior. * Syslogd was designed to strip off the local domain from every message that comes from any host in the same domain. Unfortunately this feature didn't work in every cases. This is now corrected. So you might not get the fqdn anymore. If you use any scripts that analyze logfiles, please bare this in mind. * Syslogd doesn't touch the filemode of any logfile. If it has to create one, it will be world-readable. If you do not want this (i.e. if auth.* is logged) you have to create the file by hand and change permissions. * If you notice that some of your programs make heavy use of the syslog facility and your disks get loud you might want to turn fsync()ing after each line off. But note that in doing so you increase the likelihood of lost information in the event of a system crash. * If you're going to start klogd or syslogd by init(8), you don't have to hack the code anymore. Instead add "-n" to the command-line arguments. * Klogd can now be used to decode EIP addresses if it can determine a System.map file (command-line argument "-k"). This is a very useful feature if your system crashes, but its usability depends on an actual and correct System.map file. * Both system utilities now check for and respect the existence of .pid files. If the utilities are started by configuration scripts on stable systems there is the potential that the process ID numbers of the utilities will be identical from one system boot to another. This will cause both klogd and syslogd to terminate. Both klogd and syslogd will attempt to remove their .pid files when they receive termination signals. The difficulty noted above typically occurs when a system crash occurs or an uncatchable signal (kill -9) is used to stop the daemons. The cleanest solution to this problem is to insure that the system configuration scripts (rc.*) provide a clean working environment for a freshly booted system. As part of the initialization process these scripts should remove all old .pid files found in /var/run. This will insure that klogd and syslogd start properly even if prior executions have been terminated harshly. * Large file support, i.e. support to write to log files that are larger than 2 GB is not part of syslogd, but a matter of the glibc emitting different system calls to the kernel interface. To support large files you'll have to compile syslogd with the compiler defines commented out in the main Makefile so that glibc adjusts the system calls. Modifying the kernel console log level -------------------------------------- There are two ways to alter the kernel console log level. This setting controls whether log messages from the kernel should appear on the system console or not. In the past, klogd had to do this with the -c parameter. Using '-c 4' will set the log level of console messages to 4 and only display warnings and errors but not regular debug or information messages. This behaviour is deprecated and hencely not enforced anymore via the RC script of klogd. Instead sysctl(8) should be used as interface to various kernel variables. These can be stored non-volatile in /etc/sysctl.conf. The prevent the kernel to flood the system console and to achieve the same behaviour of '-c 4' simply add the following to the configuration file and let sysctl set this kernel parameter upon system boot. kernel/printk = 4 4 1 7
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.