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.
Windows uninstall nonpresent devices…
When you want to rename a network adapter and you go “Cannot rename this connection. A connection with the name you specified already exists. Specify a different name.” You get this message for examle exwhen you changed the network card and you want to change the name of the new one to the same name the old one had.
Solution is to remove the old unused network adapter:
1.Click Start, click Run, type cmd.exe, and then press ENTER.
2.Type set devmgr_show_nonpresent_devices=1, and then press ENTER.
3.Type Start DEVMGMT.MSC, and then press ENTER.
4.Click View, and then click Show Hidden Devices.
5.Expand the Network Adapters tree.
6.Right-click the dimmed network adapter, and then click Uninstall
WinCC OA on Raspberry Pi…
works great!
Photovoltaik-Power: http://rocworks.no-ip.org:8080/apex/f?p=102
Meter-Values: http://rocworks.no-ip.org:8080/apex/f?p=102:8
Nested Virtualization/Hypervisor ESXi => HyperV….
To run HyperV in ESXi modify the vmx file of the HyperV guest vm:
vhv.enable = "TRUE"
hypervisor.cpuid.v0 = "FALSE"
To allow network communication from VMs on the HyperV over the HyperV virtual switches to the ESXi network the “Promiscuous Mode” of the ESXi network switch has to be set to “Accept” – ESXi-Host => configuration => networking => select vSwitch<X> => properties => select vSwitch => Edit => Security => Policy Exceptions => Promiscuous Mode => Accept
SmartHome Power Monitoring with WinCC OA and Oracle/APEX…
Power Monitoring http://rocworks.no-ip.org:8080/apex/f?p=100
The system also controls my hot water boiler heater
Windows VPN connection with local default gateway…
If you have created a VPN connection then as default the network configuration will be changed so that the gateway is set to the remote network. Then you will not be able to access the local network and also you will not have access to the local internet.
This can be changed by removing the setting “Use default gateway on remote network”: