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Error Handling and Logging

Handling errors and logging. (syslog, error tables, et al)
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Information and Publications: Showing

intro (2) - introduction to system calls and error numbers

Man pages: FreeBSD RedHat Solaris NetBSD

RFC1451 Manager-to-Manager Management Information Base. [c. 1993/04/01]

RFC1224 Techniques for managing asynchronously generated alerts. [ 1991/05/01]

See Also

Full List of Information

Other references not displayed here


Articles: Showing

On-Line Monitoring: A Tutorial ( Beth A. Schroeder ; IEEE Computer Magazine 1995-06)

- On-line monitoring can complement formal techniques to increase application dependability. This tutorial outlines the concepts and identifies the activities that comprise event-based monitoring, describing several representative monitoring systems.


Questions and Answers: Showing

How can I handle floating-point exceptions gracefully? []

At comp.lang.c FAQ

How can I find the error level of the previous program? []

At comp.os.msdos.programmer FAQ at MIT
http://www.faqs.org/faqs/msdos-programmer-faq/part4 (At comp.os.msdos.programmer FAQ at faqs.org)


Applications and Utilities: Showing

logger(1) - make entries in the system log {oss}

Man pages: FreeBSD RedHat Solaris NetBSD
Source code: OpenBSD FreeBSD
[IEEE Std1003.2-1992 (``POSIX.2'')]

newsyslog(8) - maintain system log files to manageable sizes {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

dmesg(8) - display the system message buffer {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

syslogd(8) - log systems messages {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

compile_et(1) - error table compiler {oss}

Man pages: FreeBSD RedHat
Source code: OpenBSD FreeBSD
et - Error table compiler and library (At comp.sources.unix at ISC)

Java Logger - Platform independant way of logging information to the platform's logging service. So far I have JLogger working for Solaris, Linux, and Windows NT. {(L)GPL}

At Sourceforge ( Production/Stable)

Squid-Graph - Squid-Graph is a Squid webcache/proxy server logfile analyzer that generates reports in the form of graphs/histogram representing the request/transfer traffic against time. {(L)GPL}

At Sourceforge ( Production/Stable)

LatestLog File Monitoring Utilities - The 'latestlog' package keeps a tiny database of when you last looked at particular file (usually a logfile) using latestlog. If the file has changed (grown) since that last time, latestlog will only display the new contents. Other utils will be adde {(L)GPL}

At Sourceforge ( Production/Stable)

Xlogmaster - is an X11 program that does comfortable and fast monitoring of all logfiles and every device that allows its status being read by cat (like the /proc devices). {GPL,GNU}

At GNU project
xlogmaster-1.6.0 - Quick & easy monitoring of logfiles and devices (At FreeBSD Ports)

logtools-0.13a - Useful tools to deal with CLF files (Common Log File format)

At FreeBSD Ports

logmon-0.3.3 - An ncurses-based split window log monitoring program

At FreeBSD Ports

flog-1.3 - A small STDIN-to-file logger with support for log rotation

At FreeBSD Ports

flasher-1.3 - Monitors log or mail files for writes, and flashes a keyboard LED

At FreeBSD Ports

log_analysis-0.41 - A utility that extracts a summary of useful data from logs

At FreeBSD Ports

passlogd-0.1d - Intercept and dump syslog remote log packets

At FreeBSD Ports

colorize-0.3.0 - A robust log colorizer

At FreeBSD Ports
colorize-0.2.8 - log colorize perl script (At NetBSD packages collection)

msyslog-1.08f - Flexible and easy to integrate syslog daemon

At FreeBSD Ports

p5-SyslogScan-0.32 - Perl5 routines to parse system logs

At FreeBSD Ports

modlogan-0.7.12_1 - A modular log file analysis program

At FreeBSD Ports

logtool-1.0.6 - Parse syslog logfile into a palatable format

At FreeBSD Ports

p5-Unix-Syslog-0.95 - Perl5 interface to the UNIX syslog(3) calls

At FreeBSD Ports

rotate-1.1 - log rotate

At FreeBSD Ports

sarah-0.8b - Syslog automated Rotation and Archive Handler

At FreeBSD Ports
sarah-0.4b (At NetBSD packages collection)

vlog-1.1f - A curses based real-time logfile viewer

At FreeBSD Ports

p5-Parse-Syslog-0.04 - Perl5 routines that present a simple interface to parse syslog files

At FreeBSD Ports

wots-1.22 - System log watch/alert utility, similar to swatch, written in Perl

At FreeBSD Ports

zephyr-20000421 - Real time message passing and notification service

At FreeBSD Ports
zephyr-2.0.4 - Zephyr Messaging Service (At NetBSD packages collection)

xwatch-0.1.0 - A Gtk-based program for watching files (e.g. logs) in a window. [X]

At FreeBSD Ports

smartlog - Logfile maintenance utility, V2.3, {oss}

At comp.sources.unix at UUNET

prune - Prune tops of line-oriented log files {oss}

At comp.sources.unix at UUNET

agelog - Trim log files while retaining recent entries {oss}

At comp.sources.unix at UUNET

simple-syslog - 'simple' clone of 4.4BSD syslog routines, {oss}

At comp.sources.unix at UUNET

syslog.sysv - SystemV version of syslog {oss}

At comp.sources.unix at UUNET

syslog - Development version of syslog(3), for ATT, too {oss}

At comp.sources.unix at UUNET

Calamaris - Statistic tool for Squid, NetCache and relatives {GPL}

calamaris-2.45 - A perl script to produce statistics out of Squid log files (At FreeBSD Ports)
calamaris-2.39 - squid logfile analyzer (At NetBSD packages collection)
(Info at freshmeat)

Webalizer - Web server log analysis program {GPL}

(Info at freshmeat)

Squij - Squid logfile analyzer {GPL}

(Info at freshmeat)

radiusContext - A RADIUS accounting log analysis package {OpenSource}

(Info at freshmeat)

unalog - A lightweight, universal logging model for human-machine events. {GPL}

Log Scanner - Real Time log watcher and notification program {GPL}

(Info at freshmeat)

Secure Syslog - Cryptographically secure system logging tool for UNIX systems {PD}

(Info at freshmeat)

multisort - small, fast C program that merges httpd logs and orders by date {GPL}

(Info at freshmeat)

http-analyze - Log analyzer for web servers {free for non-commercial use}

http-analyze-2.01_1 - A fast Log-Analyzer for web servers (At FreeBSD Ports)
(Info at freshmeat)

analog - WWW logfile analysis program {free to use but restricted}

analog-5.22,1 - An extremely fast program for analysing WWW logfiles (At FreeBSD Ports)
analog-4.1.tgz - extremely fast program for analysing WWW logfiles (At OpenBSD 2.7_packages i386)
analog-4.11.tgz - extremely fast program for analysing WWW logfiles (At OpenBSD 2.8_packages i386)
analog-4.1.tgz - extremely fast program for analysing WWW logfiles (At OpenBSD 2.7_packages sparc)
analog-4.11.tgz - extremely fast program for analysing WWW logfiles (At OpenBSD 2.8_packages sparc)
analog-5.01 - Extremely fast program for analysing WWW logfiles (At NetBSD packages collection)
(Info at freshmeat)

Softdog - watchdog daemon that interfaces with the watchdog kernel drivers

(Info at freshmeat)

sysklogd - System log daemons

(Info at freshmeat)

Applications and Utilities

Others not displayed here
Full List

Libraries and Components: Showing

err verr errx verrx warn vwarn warnx vwarnx (3) - formatted error messages {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

syslog vsyslog openlog closelog setlogmask (3) - control system log {oss}

Man pages: FreeBSD Solaris NetBSD
Source code: OpenBSD FreeBSD

strerror (3) - get error message string {oss}

Man pages: RedHat NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

perror (3) - write error messages to standard error {oss}

Man pages: FreeBSD RedHat Solaris NetBSD
Source code: OpenBSD
[ANSI C X3.159-1989]

com_err (3) - common error display routine {oss}

Man pages: FreeBSD RedHat
Source code: OpenBSD FreeBSD

libol-0.2.23 - Library needed by syslog-ng

At FreeBSD Ports

p5-Exception-Class-0.8 - A module that allows you to declare real exception classes in Perl

At FreeBSD Ports

log4cpp-0.2.7 - A library of C++ classes for flexible logging

At FreeBSD Ports

libvanessa_logger-0.0.2 - Library that provides a generic logging layer

At FreeBSD Ports

p5-Log-Agent-0.300 - A set of perl modules that allows you to enhance logging capabilities

At FreeBSD Ports

p5-Log-Dispatch-1.80 - A suite of OO modules for logging messages to multiple outputs

At FreeBSD Ports
p5-Log-Dispatch-1.77 - perl module for logging messages to multiple outputs (At NetBSD packages collection)

py22-log4py-0.7.1 - A python logging module

At FreeBSD Ports

p5-Error-0.14 - Perl module to provide Error/exception support for perl: Error

At FreeBSD Ports

libshhmsg-1.4.0 - Library for displaying messages

At FreeBSD Ports

ruby-devel-logger-1.0.0 - A lightweight logging library for Ruby

At FreeBSD Ports

ruby-log4r-1.0.1 - A flexible logging library written in Ruby

At FreeBSD Ports

nana-2.4 - Support for assertion checking and logging using GNU C and GDB

At FreeBSD Ports

p5-Religion-1.04 - Perl5 module to install die() and warn() handlers

At FreeBSD Ports
Religion - Where do Perl programs go when they die? If your Perl program die()s or warn()s, the code in $SIG{__DIE__} or $SIG{__WARN__} is executed. The Religion module simplifies access to these. (At CPAN)

p5-Errno-1.09 - A perl5 module providing access to System errno constants

At FreeBSD Ports
Errno - Defines all of the constants defined in your computer's errno.h file, if there is one. (At CPAN)

Errors.H,Err_Exit.C,Ferrorf() - SNIPPETS formatted error handlers {oss}

At snippets.org

Errfix.C - Redirect stderr to a file {oss}

At snippets.org

syslog.sysv - SystemV version of syslog {oss}

At comp.sources.unix at ISC

syslog - Development version of syslog(3), for ATT, too {oss}

At comp.sources.unix at ISC

unalog - A lightweight, universal logging model for human-machine events. Library to records event properties as XML. {GPL,Java}

Sys::OutPut - Defines subroutines "out", "put", "err", "talk", and "debug", all of which behave like printf but keep you from having to type that horrible filehandle (STDOUT or STDERR). [Perl] {oss}

At CPAN

Log::Topics - Control flow of system messages. [Perl] {oss}

At CPAN

Logfile - Generate ASCII reports from arbitrary logfiles. [Perl] {oss}

At CPAN

SyslogScan - Routines for parsing system logs. Also see the Syslog module bundled with Perl and the Logfile module. [Perl] {oss}

At CPAN

Libraries and Functions

Others not displayed here
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See also: Message Catalogs/Local language adaptations - Message catalogs, local language adaptations. error message tables, etc.

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External Categories

freshmeat.net : Topic : System : Logging

(Metalab at UNC) /pub/linux/system/admin/log/ - utilities for clearing, rotating, and digesting system logs

freshmeat.net : Topic : Internet : Log Analysis

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