3a30fb8a07
Don't break urls. 1. New Route function which generates routes compatible with old blog. 2. Renamed posts folder to blog.
45 lines
1.6 KiB
Markdown
45 lines
1.6 KiB
Markdown
---
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layout: post
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title: "Syslog on Mac OS X: Cheat Sheet"
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date: 2015-02-21 00:41
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comments: true
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categories:
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- mac
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- osx
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- syslog
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- cheatsheet
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---
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This is a quick cheatsheet to work with [`syslog(1)`](https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/syslog.1.html) implementation OS X uses.
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`Console.app` provides a nice UI to access logs in mac, you can do some basic filtering and search, but its limited in terms of raw control a terminal gives you.
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`/usr/bin/syslog` can be used to both send and receive logs. Alternatively [`logger(1)`](https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/logger.1.html) can be used to send logs to syslog.
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## Print logs from a specific facilitiy
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```bash
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# -w: similar to tailf
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syslog -k Facility local1 -w
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```
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## Sending logs
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```bash
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# -l severity level
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syslog -s "message"
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```
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## Sending logs upstream to another syslog server
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Syslog can forward your logs too. The configuration resides in `/etc/syslog.conf`. You can append forwarding rules in this file, format is
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```
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# Tab separated
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Facility.Level @IPADDR:PORT
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```
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After this reload syslog daemon.
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```
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sudo launchctl unload /System/Library/LaunchDaemons/com.apple.syslogd.plist
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sudo launchctl load /System/Library/LaunchDaemons/com.apple.syslogd.plistp
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```
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# Extra reading
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1. [`asl.conf(5)`](https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man5/asl.conf.5.html) - Configuration file for Apple Syslog Log (A syslog superset apple implements), this is where all the logic to route logs are set
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facility.level
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