[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

[2020-08-15] grapheqd version 4 fixes a bug that became apparent on a MIPS box running Linux (thread stack size too small).

[2020-07-22] grapheqd version 3 comes with support for OSS on FreeBSD, fading to immitate afterglow, a client/server mode, and several bux fixes.

[2020-07-19] grapheqd version 2 comes with slowly decreasing peak values, improved error handling, and revised logging.

[2020-07-16] grapheqd displays the frequency spectrum of an audio signal via its HTML5 webpage or ASCII interface.

[2020-07-10] rrdquery.pl retrieves one datasource from an RRD (round robin database) and optionally filters its values.

[2020-07-07] Building a digital video recorder with FreeBSD

[2020-04-05] New version of kvmlib does not connect all network interfaces to one virtual hub anymore, but makes use of the netdev and device commandline options of qemu in order to connect each virtual network card only to its assigned tap interface on the host

[2020-03-15] privatebinc.py is a simple Python client for PrivateBin

[2020-02-23]

• ldif2xml.pl converts LDIF to XML
• From the (s)hell one-liners department: Print the names of all revoked certificates (invoke from inside the pki directory of an Easy-RSA CA):

  openssl crl -noout -text -in crl.pem | grep "Serial Number: " | while read L; do serial="${L#*: }"; openssl x509 -subject -nocert -in "certs_by_serial/$serial.pem" 2>/dev/null || openssl x509 -subject -nocert -in "revoked/certs_by_serial/$serial.crt" 2>/dev/null || echo "ERROR: Cannot find certificate $serial" >&2; done
  

[2019-11-24] New version of check_tvh.py supports Python 3 and reports the size of memory allocated by device drivers

[2019-11-23] New version of kvmlib supports inserting and ejecting of cdrom images via commandline

[2019-11-09] Resizing an UFS2 filesystem on FreeBSD 4.x

[2019-10-05] Updated my howto Upgrading PostgreSQL with pg_upgrade on FreeBSD which now uses /etc/libmap.conf instead of LD_LIBRARY_PATH

old news

Imprint
Data privacy
statement