[home] [code] [patches] [howtos] [docs] [hacks] [pics] [stuff]

about

Felix J. Ogris' private homepage: some stuff about homemade software, FreeBSD, Linux, computers, and hacking in general.

Somewhat more nosy? Mailto www@ogris.de.

You're viewing this webpage using the good old IPv4 protocol.

IPv6 test pages

v6only.ogris.net which resolves to and is reachable only by an IPv6 address
purev6.ogris.net which resolves to and is reachable only by an IPv6 address, and whose authorative nameserver is reachable only by IPv6

recent news

[2025-04-03] If Firefox doesn't accept a server certificate you built with easy-rsa, then generate your SSL certificate with a subject alternative name:

$ easyrsa --subject-alt-name="DNS:www.mydomain.invalid" build-serverClient-full www.mydomain.invalid nopass

RFC 2818 discouraged the use of the common name (CN) attribute in the subject field of a SSL certificate. Most webbrowsers nowadays require subject alternative names to be present.

[2025-03-29] graypold version 12 allows you to specify the maximum number of "void" DNS look-ups per SPF check via the spf_max_void_dns_lookups configuration option. Please see the provided graylib.pm for reference.

[2025-03-21] Building a high available FreeBSD cluster describes how to build a highly available load balancer, dns server, or web server, that also runs out of the box on VMware vSphere. That howto is not suited for clusters which need to synchronize data amongst all nodes, e.g. database clusters, file servers, or so.

[2025-03-07] clucp version 2 comes with several new features:

It has specifically been updated for Corosync 3.
Each file is transferred with and compared against its SHA-1 checksum.
The access and modification time of each file are preserved.
An RC script for FreeBSD is provided.

Not yet implemented:

Correct handling of sparse files
(Adaptive) compression

[2024-10-09] LogBlitz version 21 allows you to wrap lines even on Chrome and Chromium based webbrowsers, and restores the expected cookie behaviour.

[2024-10-03] LogBlitz version 20 allows you to wrap lines.

[2024-09-25] New version of my how to install pgAdmin 4 on FreeBSD 14 fixes two errors, and covers pgAdmin 8.12.

[2024-09-04] Updated how to install pgAdmin 4 on FreeBSD 14 to pgAdmin 8.11.

[2024-08-30] New version of rrd4cmk.pl provides default status texts, and allows you to specify a name, a minimum value, and a maximum value for the metrics.

[2024-08-21] rrd4cmk.pl is a local check for Checkmk that checks an RRD database for thresholds.

[2024-06-30] Random password generator with Python >= 3.6:

$ python -c 'import random, string; print("".join(random.choices(string.ascii_letters+string.digits+string.punctuation, k=16)))'

[2024-06-16] New version of kvmlib allows you to disable any sound hardware at all (set VM_SOUND to "0"), fixes a bug when accessing qemu's console without a parameter, allows you to create, resize, and list virtual disks, and may create, delete, rollback, and list snapshots of a vm's virtual disks.

[2024-04-16] 499.ipdb is a helper for geolocation access on your FreeBSD firewall. It atomically loads the ip ranges of given countries to an ipfw firewall table. You run 499.ipdb weekly by periodic and as cron job during system boot. It either requires sysutils/ipdbtools from ports to directly download and compile ip geolocation data from a regional Internet registry, or may download the output from a central host that also runs 499.ipdb regularly.

old news

Imprint
Data privacy
statement