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Managing HPE SAS Controllers
Notes to self. And anyone else who might find them useful. Following are some ssacli commands which I use infrequently enough that they fall out of cache. This may repeat information in other blogs, but since I search my posts first when commands slip my mind, I thought I’d include them here, too. hpacucli is…
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IPv6 Multicast support on libvirt guests using macvtap
# # Debian / libvirt # # By default, qemu guests network interfaces are created with the # trustGuestRxFilters attribute set to no. This setting blocks # neighbor solicitation and other ipv6 multicast traffic. To enable # neighbor solicitations, modify your interface definition in your # guest definition XML. # For example if you have…
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First taste of Debian 12
As some of you may know, the Debian project released v12, bookworm to stable on the 10th of this month. I haven’t had a reason to try it yet, but I’m downloading it now. My first thought is that it’s much larger than I expected. The normal sized version used to fit on a CD-ROM…
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Early Access: Inserting JSON data to BigQuery from Spark on Dataproc
Hello folks! We recently received a case letting us know that Dataproc 2.1.1 was unable to write to a BigQuery table with a column of type JSON. Although the BigQuery connector for Spark has had support for JSON columns since 0.28.0, the Dataproc images on the 2.1 line still cannot create tables with JSON columns…
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Rack coming together
I now have four six-port Qotom systems and one four-port Qotom system in my rack. I have successfully verified that the newest of these is capable of pulling about 745Mbit/s of 1500-byte frames through the switch from six other hosts. I bet it will push data at the same rate. but I can’t get iperf…
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OpenDaylight Symposium 2016
I’ll write this later. Keywords and notes inline Cloud 5G AT&T Ericsson SDN FD.io Cisco Intel Linux Debian Ubuntu Open Source Hydrogen Helium Lithium OSI stack Usability Developers and users working together. Fast Dev/Test cycles Sessions start at 10:30 Message bus Minimal install needs to be smaller Most functionalities must be implemented in modules Upgrade…
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Some work on a VyOS image with Let’s Encrypt certs
I put some packages together this weekend. It’s been a while since I’ve debuilt anything officially. libffi-platypus-perl libalien-base-perl libalien-ffi-perl libffi-checklib-perl libshell-config-generate-perl libshell-guess-perl The plan is to build a binding to the libgnutls.so.30 API. The certtool CSR (REQ) generation interface does not allow me to create a CRL with “not critical” attributes set on purposes. Maybe…
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LLC-Technologies-Collier/Demo-SCCC-Byte-AngularJS
Hello dear readers and attendees, This is the post that I will be/ will have been referencing during my presentation to the Seattle Central Community College’s Byte club on Thursday, December 10th at 1500-1630. I will begin with a bit of an autobio and find out what kind of students we have in attendance. Please…
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Regarding fdupes
Dear readers, There is a very useful tool for finding and merging shared permanent storage, and its name is fdupes. There was a terrible occurrence in the software after version 1.51, however. They removed the -L argument because too many people were complaining about lost data. It sounds like user error to me, and so…
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Some statistics from the router at the cabin
sip0 is a GRE tunnel between the router and the colo box in Seattle, the payload of which is encapsulated as ipsec traffic before being transmitted over the Ubiquity equipment to the switch that the CenturyLink DSL modem attaches to. I don’t get centurylink easter eggs in my search results when I use this interface.…