Centroid.EU Blog
(this blog is mostly encrypted - adults only)
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May 15th, 2018
I have upgraded omega, my vps in frankfurt. It was behaving very oddly and
it was rebooted by the provider prior to this. Related to the PAG? Dunno.
If I see more oddness I'll have to reinstall it completely.
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Israel 70
May 14th, 2018
Congratulations to all Israelis on your countrys birthday. It's today afaik.
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Alert! New draconian laws to be passed tomorrow in Bavaria!
May 14th, 2018
The government in Bavaria wants to pass this law tomorrow. Even though
30,000 people demonstrated in Munich on the weekend against this.
This is a loss for civil rights! Please read this story (german) by Heribert Prantl of the Sueddeutsche Zeitung. Tomorrow will be
a sad day for us. It will get scary for those exposed to the new police laws
directly, innocent or not! It's a shame. It will bite us. Remember the
saying by Abraham Lincoln a US President in 1859, "Those who deny freedom to others, deserve it not for themselves; and, under a just God, can not long retain it." The quote for that is hyperlinked. This is a sad week for Bavarians.
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Donated to NLnet Labs of NSD/Unbound Project
May 12th, 2018
As a thank you to Habbie of PowerDNS I have donated 25 EUR to a project that
needs support. I sent it to NLnet Labs but wasn't able to write a message
with the donation. It's worth it to keep the money in the DNS hegemony.
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A fix went into delphinusdnsd
May 12th, 2018
I have just updated the news section of delphinusdns.org, this is what I
added:
- A fix went in to signing a zone with dddctl on 20180512 regarding Empty
Non-Terminal names (ENTs) and DNSSEC, it's not critical if you don't have
ENTs in your zonefile, but if you do (for example when using DANE), please
update to tonights snapshot (after 12 midnight CEST?) or onwards. Please
notify me of any breakage.
What this means is that before today, if you had something like
_25._tcp.mail.solarscale.de and there was an ENT which is
_tcp.mail.solarscale.de (in my case) (an ENT has no record) then nameservers
who look up _tcp.mail.solarscale.de before or after could cause _25._tcp.mail.solarscale.de to be denied (SERVFAIL) on recursing nameservers, this of course
is critical on DANE systems. I found this fault last week and with the help
of a known #dns regular we were able to diagnose the problem. Thanks Habbie!
I wrote a bindfile conversion routine into dddctl which allowed me to run
many dns zone file checkers against a zone, (such as jdnssec-verifyzone). I
also while there wrote a regression into delphinusdnsd. Hopefully the effort
will pay off.
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New functionality in dddctl
May 10th, 2018
I have hacked a little on delphinusdnsd today. I wrote a conversion mode
in dddctl to convert delphinusdnsd zonefiles to BIND9/RFC-1034 style files.
Here is a test, which I may be using in a regress suite that I'm working on:
solarscale.de.signed 100% 13KB 429.6KB/s 00:00
beta$ dddctl bindfile solarscale.de solarscale.de.signed > solarscale.bind
beta$ ldns-verify-zone solarscale.bind
Zone is verified and complete
I'll have to update the delphinusdnsd handbook soon which suggests one do the
conversion with dig. Happy happy.
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Purchased Switch and 10 GbE adapter
May 7th, 2018
Happy anniversary blog! Last night I purchased an 8 port 10 GbE switch
(maker HPE, american) and a 10 GbE Intel X550-T2 network adapter. I'll
be attaching these to beta my workstation which will become a router with
vlans on the 10 GbE adapter. I'll also make beta my backup host as my
current backup host theta does not wake properly (even on RTC wake), and it's
better this way anyhow. The equipment purchased was rather expensive but
I was in need for ports in the home office. This satisfies my need. Uranus
my 6 port router will go into the hallway and replace eta and gamma and I'll
make some electricity savings there. Everything is working out...
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Happy Anniversary!
May 6th, 2018
Tomorrow is the blogs ninth birthday (9 years). This is the oldest article
I could find.
Also the 7th anniversary I said something you can read it
here. Notice
the hyperlinks have changed on a lot of articles since I rewrote this blog
to BCHS, so you may enounter broken hyperlinks. I'm still debating whether
I should update those. For now it's time to party. Here is a cup o' tea to
ya centroid.eu blog!
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Added SSHFP utility to dddctl, while there fixed signing sshfp records
May 5th, 2018
I have added a "sshfp" mode for dddctl which makes use of ssh-keygen -r.
This is the output of it:
beta$ dddctl sshfp beta.centroid.eu
beta.centroid.eu.,sshfp,3600,1,1,"bd1233ca6586a3033ac5d90209a7e4c36269b83f"
beta.centroid.eu.,sshfp,3600,1,2,"ad389bc08427c82f96d15aa2bf28017f70bee17ab441d641778b13b179233e62"
...
I find this useful others may not, but i do. The canonicalization of RR's for
the signing was in the wrong order and I had to fix that last night. It was
a bit of a debug. And perhaps more sign types need the fix I found than just
sshfp_sign(), we'll see.
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My Network Map for home
May 4th, 2018
Here is an updated network map for my home network.
7 cables
|||||||
+-------------+
| zeta | (livingroom)
+------+---+--+
Internet | -
^ uplink | - IPSEC & gif
| +----------------+ | - to mercury
| | | | -
+---+---+ +--+---+ +---+----+ |
+ gamma +----+ eta +--------+ AREA52U+----+ (hallway)
+---+---+ +------+ link1 +---+----+ link2
| |
| |
| | Freifunk B.A.T.M.A.N. over
| | cat5e cable
| |
| +----+----+
| | AREA52K2|
| +----+----+
| |
+---+---+ +----+----+
|mercury|<=================>| uranus | (home office)
+-------+ IPSEC&gif tunnel +---------+
|||||
5 cables
This may change soon as I've decided I need more ports. Since I lost venus
(router) I'm short for 12 RJ45 gig ethernet ports. I'm going to wait a while
until OpenBSD makes the vpn offload code for octeon stable and then I'm going
to buy a 10 GbE switch (probably a Ubiquiti Networks one) and place that in
my office, where uranus will go in the hallway and eta in my office.
I wasn't going to do that until 2020 but I have a need for more ports now and
I don't want to mis-invest. We'll see.
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