tnsames.ora for pluggable database

something that I keep forgetting

 PDBSLM =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = pdbslm.companyname.com)

    )

  )

 select value from v$parameter where name='service_names';

select name, pdb from v$services;

where pdbslm.companyname.com is the global name of the pluggable database

java mail and TLS

article

check mail.smtp.ssl.socketFactory here


hMailServer
SSL certificates
public key is expected to be in PEM format
see here
private key must be with stripped out passphrase, i.e. without a passphrase
I used BIS to export PK without a passphrase

For Debug:

-Djava.security.debug=certpath

-Djavax.net.debug=trustmanager


JavaMail API Design Specification 1.6

Java Mail API doc

Microservices

Microservices pattern

https://martinfowler.com/articles/microservices.html

Oracle 12c Upgrade from 21.1.0.2 to 12.2

Article

https://docs.oracle.com/database/122/UPGRD/behavior-change-deprecate-desupport-oracle-12c-rel-2.htm#UPGRD60000

Clearing recycle bean

PURGE DBA_RECYCLEBIN;

for each PDB as well.

maven books

maven book

How to Determine Your Version of Tomcat

How to Determine Your Version of Tomcat

plantuml

plantuml

Git Book

ProGit

IT eBooks

IT eBooks

JUnit 4

JUnit 3 vs JUnit 4 Comparison

eclipse Specified VM install not found: type Standard VM...

e.g.
Specified VM install not found: type Standard VM, name jdk1.7.0_60

When getting this error when starting ant build - usually when the used JDK is changed -
in eclipse workspace, go to
.metadata\.plugins\org.eclipse.debug.core\.launches
and delete .launch file for the project

X-UA-Compatible

X-UA-Compatible

Funny Way to Learn Quick Sort

Quick-sort with Hungarian Folk Dance

http://phabricator.org/

http://phabricator.org/

MIT Advanced Data Structures'2012

http://courses.csail.mit.edu/6.851/spring12/

JRebel

JRebel

oracle - password life time

SQL> connect system/***
ERROR:
ORA-28002: the password will expire within 7 days

???
----------
SQL> select profile from dba_users where username='SYSTEM';

PROFILE
------------------------------
DEFAULT

SQL> select resource_name, limit from dba_profiles where profile = 'DEFAULT';

RESOURCE_NAME                    LIMIT
-------------------------------- ----------------------------------------
...
PASSWORD_LIFE_TIME               180
...

16 rows selected.

SQL> ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;

Dr Dobb's http://www.bullhornreach.com/sites/HireMinds/article/view/44691?referer=www.linkedin.com&shortlink=1490340

http://www.bullhornreach.com/sites/HireMinds/article/view/44691?referer=www.linkedin.com&shortlink=1490340

cloudflare

http://www.cloudflare.com/

JVM thread dump

creating a thread dump of JVM
when the application is running in the console:
Control + Break in the console

http://www.webnms.com/webnms/help/developer_guide/troubleshooting_tips/creating_threaddump.html