[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
[Howto] KERBEROS and PAM
prerequisite: working Kerberos configuration #/etc/krb5.conf (minimal example) [libdefaults] default_realm = <MY-REALM> [realms] <MY-REALM> = { kdc = <IP-adress> admin_server = <IP-adress> } kerberized login: #/etc/pam.conf (without support for X Desktop Environment) login auth required pam_krb5.so login account required pam_krb5.so … Continued
[Facts] boot chain for UEFI and ZFS
boot -chain example with UEFI (=sucessor of BIOS): UEFI … the pc is powered on and the UEFI begins with self-test routines ↓ HDD (configured in UEFI) … UEFI boots from the configured device (e.g. “1st boot device = … Continued
[Howto] install HP Enterprise Mellanox ConnectX-2 EN NIC (671798-001) in FreeBSD
The required kernel module is not included in the base system. However you will find the needed modules as source-code, which you can compile and install manually. The required modules are: mlx4 and mlxen. #tested with ‘FreeBSD 11.0-Release-p7’ #download the … Continued
[Facts] network speed difference by increasing the mtu (maximum transfer unit)
system: 2x NICs with 10 Gb/s SFP+ ports connected with fibre-cable (Intel 82599, Mellanox MNPA19-XTR) test-software: iperf3-3.1.3 result: +5% #with mtu=1500 [SUM] 0.00-10.00 sec 11.0 GBytes 9.45 Gbits/sec sender [SUM] 0.00-10.00 sec 11.0 GBytes 9.40 Gbits/sec receiver #with mtu=9000 … Continued
[Howto] manually download kernel headers / sources in FreeBSD
download via svn or svn-lite: #command to download the complete FreeBSD source-files svnlite checkout https://svn.freebsd.org/base/releng/11.0/ /usr/src/ #command to download only the FreeBSD kernel/header source-files svnlite checkout https://svn.freebsd.org/base/releng/11.0/sys/ /usr/src/sys
[Howto] update the firmware of HP Enterprise Mellanox ConnectX-2 EN NIC (671798-001)
Disclaimer: All liability is excluded. Be careful, you can brick your card. Important: you can’t use the firmware from HP 516937-B21 for the 671798-001, because all downloadable firmwares are for the 2-Port Version or for the wrong Board-Revision. So … Continued
[Howto] update the firmware of HP Enterprise SAS Expander (468406-B21)
Disclaimer: All liability is excluded. Be careful, you can brick your card. prerequisites: an Host-Bus-Adapter (e.g. LSI 9210-8i) #install the HBA and the SAS-Expander into your PC and connect both with an SFF8087-cable #download the needed tools (e.g. Debian … Continued