OSX Mail crashes when using TunnelBlick and setting DNS/WINS

Leave a Comment / Apple, OpenVPN / By /

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 Apple, multiple times. Also of note: My mail server is not at home… it’s out there on the […]

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Installing net-mgmt/net-snmpd and getting it running

3 Comments / FreeBSD, snmp / By /

NOTE: If you are looking to configure net-mgmt/net-snmp for the first time, the latest article is Configuration of net-mgmt/net-snmp on FreeBSD. NOTE: IF YOU WANT TO GET IT WORKING, skip down to The Recipe. See also net-mgmt/net-snmpd wants /snmp/snmpd.conf for later versions of net-snmpd. I want to measure more stuff. I have catci running on some machines, but I have long neglected those stats. In response to my recent post on the FreeBSD

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

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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 look for snapshots, find one from a few minutes ago, and rollback to that. $ zfs list -t

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Swapping disks in a zpool

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I’m using FreeBSD 10.2-RC2 here, with a bunch of HDD. Here are the current pools: The degraded music pool contains a drive I will be replacing later in this post. But first, I want to replace a mis-matched drive in the benchmarking pool. I noticed that when I saw this output: The serial number on line 19 is of a different format. I suspected I was using different size drives because I knew

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

4 Comments / FreeBSD, LibreNMS, snmp / By /

NOTE: If you are looking to configure net-mgmt/net-snmp for the first time, the latest article is Configuration of net-mgmt/net-snmp on FreeBSD. 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

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CAM status: ATA Status Error READ_DMA48 Error 5, Retries exhausted

Leave a Comment / Disks, FreeBSD, hardware / By /

This turned up this morning: Aug 5 05:10:04 knew kernel: (ada0:ata0:0:0:0): READ_DMA48. ACB: 25 00 d0 c4 6e 40 57 00 00 00 60 00 Aug 5 05:10:04 knew kernel: (ada0:ata0:0:0:0): CAM status: ATA Status Error Aug 5 05:10:04 knew kernel: (ada0:ata0:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 40 (UNC ) Aug 5 05:10:04 knew kernel: (ada0:ata0:0:0:0): RES: 51 40 f0 c4 6e 57 57 00 00 40 00 Aug 5 05:10:04

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Replacing a failed drive in ZFS on FreeBSD

1 Comment / Disks, FreeBSD, Open Source, ZFS / By /

I’m using FreeBSD 10.2-RC2. One of my new hard 3TB drives was acting up. I removed it and sent it off to be replaced. In the meantime, I received some 5TB drives and I added one of them into the existing vdev of the zpool. First, I partitioned the drive much like the other drives in the system. In my case, this was: $ sudo gpart create -s gpt da0 da0 created $

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smartctl -t long /dev/allthedrives

2 Comments / FreeBSD, smartctl / By /

I took delivery of another 10 x Toshiba PH3500U-1I72 5TB drives yesterday. They are installed into the latest server (varm). This sever also contains 10x Toshiba DT01ACA300 3TB drives. Last night I wrote a wee script to start long tests on each of them. I was able to extract a list of the hard drives through this command: I suspect I could have done similar with ls /dev/da*. With the above list, I

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smartd: ATA error count increased from 0 to 1

Leave a Comment / Disks, hardware, smartctl / By /

I noticed this in /var/log/messages today: Jul 30 13:25:21 knew kernel: (ada0:ata0:0:0:0): READ_DMA48. ACB: 25 00 b0 51 95 40 68 00 00 00 40 00 Jul 30 13:25:21 knew kernel: (ada0:ata0:0:0:0): CAM status: ATA Status Error Jul 30 13:25:21 knew kernel: (ada0:ata0:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 40 (UNC ) Jul 30 13:25:21 knew kernel: (ada0:ata0:0:0:0): RES: 51 40 b8 51 95 68 68 00 00 38 00 Jul 30

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smartd: Device: 8 Currently unreadable (pending) sectors

Leave a Comment / Disks, hardware, Open Source, smartctl, ZFS / By /

I noticed these messages this morning, on the new server: $ grep smartd /var/log/messages Jul 25 11:35:29 varm smartd[813]: Device: /dev/da15 [SAT], 8 Currently unreadable (pending) sectors Jul 25 11:35:29 varm smartd[813]: Device: /dev/da15 [SAT], 10 Offline uncorrectable sectors Jul 25 12:05:28 varm smartd[813]: Device: /dev/da15 [SAT], 8 Currently unreadable (pending) sectors Jul 25 12:35:29 varm smartd[813]: Device: /dev/da15 [SAT], 8 Currently unreadable (pending) sectors Jul 25 13:05:29 varm smartd[813]: Device: /dev/da15 [SAT],

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