[Howto] color calibration with argyllcms + X11 + Spyder 5 Pro
ArgyllCMS is the preferred Color-Managment-System for Linux. Short summary: 1) xset dpms 0 0 0 #disable energy-saving 2) dispcal -yl -qm -t6500 -G2.2 -F file #create calibration-file 3) dispwin file.cal #active calibration-file 4) dispread -yl -F -r #test calibration … Continued
[Howto] resolve pam-systemd login error
Debian error message (/var/log/auth.log) pam_systemd(login:session): pam-systemd initializing Jun 28 02:53:26 debian login[3173]: pam_systemd(login:session): Asking logind to create session: uid=1000 pid=3173 service=login type=tty class=user desktop= seat= vtnr=0 tty=/dev/tty1 display= remote=no remote_user= remote_host= Jun 28 02:53:26 debian systemd: PAM no modules loaded … Continued
[Howto] enable Auto-Updates in WordPress
default setting: only minor updates (4.7.1 → 4.7.2) are applied automatically major updates (4.7 → 4.8) must bei applied manually #edit your wp-config.php and insert the following: #to enable major-release updates define(‘WP_AUTO_UPDATE_CORE’, true)
[Howto] enable renewable HEIMDAL Kerberos 5 tickets
Heimdal Kerberos Version 7.3.0 at first you have to check if your principal has renewable-tickets allowed: #serverside login into kerberos-database kadmin -l #list attributes (the attribute-section of the output should not contain something like ‘disallow-renewable’) kadmin> list -l <principal> … Continued
[Howto] redirect URL with Apache httpd without mod_rewrite
Apache httpd supports PCRE (=perl compatible regular extensions). Be careful of the syntax, because the regex must be enclosed by “/” and you have to use “=~” to enable pcre. This example redirects “<any>.olddomain.<any>” to “http://www.newdomain.com” <If “%{HTTP_HOST} =~ … Continued
[Howto] Epson ET-3600 and Debian 9.0 Linux
today there aren’t any specific ET-3600 linux drivers. However, you can use the ET-4550 driver for the ET-3600 printer and it work’s fine. download the linux ET-4550 driver Epson ESC/P-R Driver v1.6.3 from http://download.ebz.epson.net/dsc/search/01/search/ install the prerequisites: (lsb-Package) apt-get … Continued
[Howto] FreeBSD 11 and postfix 3.2.0 (‘unknown system type’ error)
make error-message: ATTENTION: ATTENTION: Unknown system type: FreeBSD 11.0-RELEASE-p2 ATTENTION: *** Error code 1 Solution: insert into postfix-3.2.0/makedefs FreeBSD.11*) SYSTYPE=FREEBSD11 : ${CC=cc} : ${SHLIB_SUFFIX=.so} : ${SHLIB_CFLAGS=-fPIC} : ${SHLIB_LD=”${CC} -shared”‘ -Wl,-soname,${LIB}’} : ${SHLIB_RPATH=’-Wl,-rpath,${SHLIB_DIR}’} : ${SHLIB_ENV=”LD_LIBRARY_PATH=`pwd`/lib”} : ${PLUGIN_LD=”${CC} -shared”} ;; … Continued
[Howto] solve adoDB error messages with Typo3 and PostgreSQL
If you want to use typo3 with postgreSQL-database you have to use the AdoDB-abstraction layer between them. AdoDB makes the typo3 commands database-independent. However, it requires some compatibility configuration in postgreSQL. If you created a new postgreSQL database, you must … Continued
[Howto] solve UID=65534 (nobody) and GID=4294967294 in NFSv4
problem: alle files/folders show the uid=65534 (=nobody) and gid=4294967294 reason: the id-mapping daemons aren’t running or are missconfigured. Check if they are running and read the manpages for correct configuring. #linux nfsidmap #freeBSD nfsuserd solution: start ID-Mapping daemons … Continued
[Howto] Kerberos + NFSv4 + ZFS (kerberized NFS)
prerequisite 1: a working Domain-Name-System for all devices (DNS and rDNS), because the kerberos tickets uses DNS-names instead of IP-adresses. Without a working DNS resolution a connection can’t be established. myServer.com → 192.168.0.1 192.168.0.1 → myServer.com #check DNS resolution dig … Continued