2015

mfituil exploration

When I couldn’t see any tape library associated with my SAS card, I decided to play with mifutil in case that provides any useful information. # mfiutil -u 0 show adapter mfi0 Adapter: Product Name: PERC 6/E Adapter Serial Number: 1122334455667788 Firmware: 6.2.0-0013 RAID Levels: JBOD, RAID0, RAID1, RAID5, RAID6, RAID10, RAID50 Battery Backup: not

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tape01 – old server; new purpose

This is tape01, the server to which the DELL TL4000 will be attached. At one time, it was my gateway/firewall/router. Of interest is the SAS card. You can see photos here. $ grep mfi /var/log/messages Dec 30 14:48:02 tape01 kernel: mfi0: <Dell PERC 6> port 0xd000-0xd0ff mem 0xfbec0000-0xfbefffff,0xfbe80000-0xfbebffff irq 19 at device 0.0 on pci3

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OSX Mail crashes when using TunnelBlick and setting DNS/WINS

I encounter edge cases. It’s not fun. This particular situation caused OXS Mail.app to crash when using a VPN. The outline This particular edge case involved the following: OSX 10.11.1 (15B42) Tunnelblick 3.5.5 (build 4270.4461) Mail.app When running Mail.app, it would crash within 5-10 seconds. The full dump of the crash has been sent to

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Deleting files from /usr/, breaking your system, then recovering

Yes, this was not fun. I took some notes, but not everything. Please read the notes if you plan on doing these foolish things. I was cleaning up /usr/src on a host which does not hold src. I looked and found: It was there that I knew I’d done the wrong thing. Trying snapshots Let’s

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Smart quotes are not so smart: net-snmp-config –create-snmpv3-user for LibreNMS

I wasted a few hours today trying to figure out why special characters in passwords were causing problems. I was chasing the wrong problem. Conclusion: smart quotes are dumb. Full disclosure: I should have seen the problem. The problem is not with LibreNMS. Here is my procedure for creating an snmp read-only user, as provided

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