Författararkiv: Anders Nygren

Monitor Java app started as Windows Service under local system account

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1. Install a service using sc.exe – that will open a command prompt under local service account by executing this on cmd window

sc create debugservice binpath= "cmd /K start" type= own type= interact

2. sc start debugservice

(on a remote desktop session, this service has to be started only in console session for the command prompt window to pop up)
will print message that [SC] StartService FAILED 1053: but will start a command prompt under local system account.

3. Launch e.g. jconsole.exe

Device eth0 does not seem to be present

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Error message after moving an RHEL image to a new KVM host.

Bringing up interface eth0: Device eth0 does not seem to be present, defining initialization    [FAILED]

Check network interface

ls /sys/class/net
eth1  lo

Check boot info



Edit /etc/udev/rules.d/70-persistent-net.rules and set the 


vi /etc/udev/rules.d/70-persistent-net.rules


http://hyper-choi.blogspot.se/2012/09/vmware-error-device-eth0-does-not-seem.html

					

		
		
	


				
					
	

				
					
	

				
					
	

				
					
	

		

						
OpenDJ

			
						

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OpenDJ


Remove OpenDJ at startup


$ sudo update-rc.d opendj remove


Set index-entry-limit


/opt/opendj/bin/dsconfig set-backend-prop \
 --backend-name userRoot \
 --set index-entry-limit:100000


Remove subtree


/opt/opendj/bin/ldapdelete \
 --port 1636 \
 --bindDN "cn=Directory Manager" \
 --bindPassword password \
 --trustAll \
 --useSSL --noPropertiesFile \
 -J 1.2.840.113556.1.4.805 \
 --verbose \
 o=Test,dc=example,dc=com


Get password policy prop


$ /opt/opendj/bin/dsconfig get-password-policy-prop \
  --policy-name "Default Password Policy" \
  --advanced -p 4444


Set allow-pre-encoded-passwords


$ ./dsconfig set-password-policy-prop \
  --set allow-pre-encoded-passwords:true \
  --policy-name "Default Password Policy" \
  --advanced -p 4444


Get system name


$ /opt/opendj/bin/ldapsearch -D "cn=Directory Manager" \
  -p 1389 \
  -b "cn=System Information,cn=monitor" \
  -s "base" "objectclass=*" \
  systemName

dn: cn=System Information,cn=monitor
systemName: odj-2


Get multimaster synchronization info


$ /opt/opendj/bin/ldapsearch -D "cn=Directory Manager" -p 1389 \
 -b "cn=Multimaster Synchronization,cn=Synchronization Providers,cn=config" \
 "objectclass=ds-cfg-replication-domain" ds-cfg-replication-server ds-cfg-base-dn \

dn: cn=cn=admin data,cn=domains,cn=Multimaster Synchronization,cn=Synchronizatio
 n Providers,cn=config
ds-cfg-base-dn: cn=admin data
ds-cfg-replication-server: odj-1:8989
ds-cfg-replication-server: odj-2:8989

dn: cn=cn=schema,cn=domains,cn=Multimaster Synchronization,cn=Synchronization Pr
 oviders,cn=config
ds-cfg-base-dn: cn=schema
ds-cfg-replication-server: odj-1:8989
ds-cfg-replication-server: odj-2:8989

dn: cn=dc=example\,dc=com,cn=domains,cn=Multimaster Synchronization,cn=Synchroniz
 ation Providers,cn=config
ds-cfg-base-dn: dc=example,dc=com
ds-cfg-replication-server: odj-1:8989
ds-cfg-replication-server: odj-2:8989


Check replication status


./ldapsearch -D "cn=Directory Manager" -p 1389 -b "cn=replication, cn=monitor" "(&(Replication-Server=odj-1:8989)(domain-name=dc=example,dc=com))" received-updates server-state
dn: cn=Connected Replication Server odj-1:8989 19125,cn=Replication Server 8989 
 odj-2 7724,cn=dc_example_dc_com,cn=replication,cn=monitor
server-state: 0000013e17ab073228db0000880c Wed Apr 17 13:04:44 CEST 2013 1366196
 684594
server-state: 0000013e1898f744515000005fe2 Wed Apr 17 17:24:38 CEST 2013 1366212
 278084
received-updates: 23570


Create a New SMTP Alert Handler


$ ./dsconfig create-alert-handler \
  --handler-name "my SMTP Handler" \
  --type smtp \
  --set enabled:true \
  --set message-body:"Alert Type: %%alert-type%%\n\nAlert ID: \
    %%alert-id%%\n\nAlert Message: %%alert-message%%" \
  --set message-subject:"Alert Message" \
  --set recipient-address:directorymanager@example.com \
  --set sender-address:OpenDS-Alerts@directory.example.com \
  --hostname odj-1 --port 4444 \
  --bindDN "cn=Directory Manager" --bindPassword password --no-prompt


List alert handlers


$ ./dsconfig list-alert-handlers \
  --hostname odj-1 --port 4444 \
  --bindDN "cn=Directory Manager" --bindPassword password --no-prompt

					

		
		
	


				
					
	

		

						
InstallAnywhere

			
						

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Properties in LAX-file


lax.nl.java.option.additional=


Logging to console during manual installations


# export LAX_DEBUG=true


Set temp directory, default ”/tmp”


# export IATEMPDIR=temp_dir


Create response file for silent installation


# ./<installer>.bin -i console -r <filename>


Silent install with response file


# ./<installer>.bin -i silent -f <filename>

					

		
		
	


				
					
	

		

						
Java service in headless environment

			
						

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Situation


When running java service on Linux or Unix and getting the following error message:
java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment




Solution


Add the Java parameter -Djava.awt.headless=true to the script file that starts the application. 


-Djava.awt.headless=true