mac1:~ root# scutil –set HostName mac1
mac1:~ root# scutil –set ComputerName mac1
mac1:~ root# scutil –set LocalHostName mac1
OpenSuse Samba-Share Security AppArmor…
I wanted to share a directory (e.g. /share) but it didn’t work, only the users home directory worked well. The reason was “AppArmor” (you find it in the YaST Control Center), disable or configure it well, then it works.
Linux create/allocate a bigfile thin provisioned…
For example when creating a big file for an iSCSI image file, a fast way is to use “fallocate”:
fallocate -l 100GB disk01.img
Register 11.2 database to 12.1 grid infrastructure…
some permission have changed between 11 and 12, before creating a 11 database in an 12 grid environment some permission have to be changed:
./crsctl modify type ora.database.type -attr “ATTRIBUTE=TYPE_ACL, DEFAULT_VALUE=’owner:root:rwx,pgrp:dba:rwx,other::r–,group:dba:r-x,user:oracle:rwx'”
./crsctl modify type ora.service.type -attr “ATTRIBUTE=TYPE_ACL, DEFAULT_VALUE=’owner:root:rwx,pgrp:dba:rwx,other::r–,group:dba:r-x,user:oracle:rwx'”
otherwise you will get an permission error when the database will be added to the grid.
if you already got the error while creating the database with dbca then you can add the database manually to the grid, but you have to use srvctl from the 11 home directory:
/home/app/product/11.2.0/dbhome/bin/srvctl add database -d <DB> -o /home/app/product/11.2.0/dbhome
How to set dns-server and search domain in solaris 5.11
root@solaris:~# svccfg
svc:> select dns/client
svc:/network/dns/client> setprop config/nameserver = net_address: 192.168.1.14
svc:/network/dns/client> setprop config/search = astring: rocworks.local
svc:/network/dns/client> select default
svc:/network/dns/client:default> refresh
svc:/network/dns/client:default> validate
svc:/network/dns/client:default> select name-service/switch
svc:/system/name-service/switch> setprop config/host = astring: “files dns”
svc:/system/name-service/switch> select default
svc:/system/name-service/switch:default> refresh
svc:/system/name-service/switch:default> validate
check the result in /etc/resolv.conf (don’t edit this file, it will be set by svc on (re)boot)
search rocworks.local
nameserver 192.168.1.14
Raspberry/Debian wlan auto reconnect…
Go to /etc/ifplugd/action.d/ and rename the ifupdown file to ifupdown.original
Then do: cp /etc/wpa_supplicant/ifupdown.sh ./ifupdown
Finally: reboot
Oracle unlimited password lifetime for default profile…
alter profile default limit password_life_time unlimited;
Solaris nfs mount at boot (for oracle db_recovery_file_dest)
svcadm enable -r nfs/client
/etc/vfstab:
nas2:/vols/disk/oradata – /data/oradata nfs – yes rw,xattr,rsize=32768,wsize=32768,hard
SQL> show parameter db_recovery
NAME TYPE VALUE
———————————— ———– ——————————
db_recovery_file_dest string /data/oradata
db_recovery_file_dest_size big integer 80G
———————————— ———– ——————————
db_recovery_file_dest string /data/oradata
db_recovery_file_dest_size big integer 80G
Oracle RAC ologgerd process high cpu load…
The ologgerd is part of Oracle Cluster Health Monitor and is used by the Oracle Support to troubleshoot RAC problems. If ologgerd process is consuming a lot of CPU and writes a lot of data to disk, it can be stopped by executing on both nodes:
# crsctl stop resource ora.crf -init
to disable ologgerd permanently, execute:
# crsctl delete resource ora.crf -init
Linux send hostname to Windows DHCP and DNS Server…
Send hostname to DHCP Server:
/etc/dhcp/dhclient.conf:
send host-name “xxxx”;
Think it should be without the domain name!
At the windows dhpc server check that the option “Dynamically update DNS A and PTR records for DHCP clients that do not request updates” is enabled.