(The tail command, as the name suggests, shows the tail end of a file. This app is a simple front-end to the Unix command line tool "tail." When you run the graphical Console application what it is actually doing is issuing a "tail -f /private/var/tmp/console.log" command behind the scenes, taking the output from that command and displaying it in a pretty Aqua window. Unfortunately, the Console application leaves a lot to be desired. If the events they refer to aren't significant enough to demand a user's immediate attention, then they usually get routed to a log somewhere, and it is the console.log that gets many of them. All programs that are running on the machine will occasionally emit error, warning and status messages in a textual form. So what sort of things get written to that file? Most often, the answer is error messages and warnings. What this program is actually doing is monitoring a little file called "console.log" that is stored deep down in the filesystem at the following location: /private/var/tmp/console.logĮverytime something new gets written to that file the Console app flashes its window up to the front and lets you know what's happening.
MAC LOG FILES MAC OS
Take a look in the Applications/Utilties folder of your Mac OS install you'll find a little application named "Console." If you've ever tried running this app you'll have seen how it likes popping to the front of your screen every now and then and flashing some nearly intelligible textual messages for a second. So if you can't see the wood for the trees, console yourself and delve into the wonderful world of logs. We'll start by looking at the system console log.
MAC LOG FILES MAC OS X
This column will serve as an intro to some of the key logs that you'll find on your Mac OS X system. Logs are text files that form a record of what has occurred on the system, much like a journal. They include things like NFS (Network File System), Samba/CIFS (Windows filesharing), AFP (Apple File Protocol), FTP (File Transfer Protocol) and robust Web serving with Apache, the world's most popular Web server.Īs an inseparable part of all this Unix technology we are also welcome to the world of logs. We've looked at many of these in previous Hot Cocoa columns.
One of the most attractive aspects of this new foundation is the set of industrial-strength networking applications that come with it. Underneath the bright and shiny new Aqua interface of Mac OS X comes a completely new Unix foundation that is unlike anything Mac OS users have experienced before. I also tried config the /etc/asl.log: > /var/log/sshd.The Mac Observer Express Daily NewsletterĬonsole Yourself: Understanding Mac OS X Logs means tab character here, and reloaded the config: $ killall -HUP syslogdīut sshd.log file can not be found in /var/log folder when I executed ssh localhost. $ launchctl load -w /System/Library/LaunchDaemons/ssh.plistĪnd then I set log path in /etc/nf: auth.*/var/log/sshd.log I guess these two lines are used to config debug mode, then I removed # before them and set LogLevel to DEBUG3 and then restarted sshd: $ launchctl unload -w /System/Library/LaunchDaemons/ssh.plist Above all are question background, and the actual question is where can I find debug logs of sshd so I could know why logging is failed in further?Īs I know, Mac OS already have sshd installed and use launchd to manage it, and I know one way to output debug logs by sshd -E /var/log/sshd.log, but when I reviewed /etc/ssh/sshd_config configuration and there are two lines: #SyslogFacility AUTH But sometimes I came across with error when I use ssh to log in.
I want to install Pseudo-Distributed HBase environment on my Mac OS Sierra (10.12.4), and it requires ssh installed and can log with ssh localhost without password.