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Managing your log files

Mar 18, 2009, 19:32 (0 Talkback[s])

"In this tutorial we'll begin by taking a peek inside a few log files to get a hint about the kind of stuff you'll find there: then we'll move on to examine some tools for summarising and managing the files.

"Logged messages fall into two broad types: low-volume messages that you might want to read line by line, and high-volume messages that really need to be summarised.

"Let's take a look at a couple of examples of the low-volume type first.

"e1000: 0000:04:03.0: e1000_probe: (PCI:66MHz:32-bit) 00:0e:0c:4a:42:4e
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog_task: NIC Link is Up 10 Mbps Full Duplex

"Exhibit A is taken from the kernel's ring buffer - these three lines show a kernel module discovering and initialising a network interface. Such messages are encouraging if you have added new hardware and are trying to establish if Linux can find it."

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