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Showing posts from 2016

Basic auth with Apache and Tomcat

This is a short "recipe" article explaining how to configure basic authentication for the following setup:
Apache Tomcat with some application that need be partially password-protectedApache HTTP Server 2.4 as a proxyCentOS 7 Linux server Although basic authentication can be configured within Tomcat itself, my target is to use Apache for that purpose. In addition, as passing unencrypted credentials over the web is insecure, I'm going to install SSL certificates to enable HTTPS for the part of my application. This setup can be used when a part of an internal application need be secured to make it publicly accessible using a separate firewall/proxy (out of scope of this article), that part will be password-protected and SSL-encrypted.
Steps
Copy certificates into /etc/ssl/certs/ivanlagunov.comCreate symlink:cd /etc/httpd sudo ln -s /etc/ssl/certs/ivanlagunov.com Install Apache mod_sslsudo yum -y install mod_sslCreate file with user credentials for basic authenticationsudo …

Using Oracle impdp utility to reload database

Here I'll show an example of using Oracle Data Pump Import (impdp) utility. It allows importing Oracle data dumps. Specifically, below is the list of steps I used on an existing Oracle schema to reload the data from a dump. Steps to reload the data from an Oracle dump
We start with logging into SQL Plus as sysdba to be able to manage users. sqlplus [email protected] as sysdba Dropping the existing user. CASCADE clause will ensure that all schema objects are removed before the user. SQL> DROP USER test CASCADE; Creating a fresh user will automatically create an empty schema with the same name. SQL> CREATE USER test IDENTIFIED BY "testpassword"; Granting DBA role to the user to load the dump later. Actually, it's an overkill and loading the dump can be permitted using a more granular role IMP_FULL_DATABASE. SQL> GRANT DBA TO test; Registering the directory where the dump is located. SQL> CREATE DIRECTORY dump_dir AS '/home/test/dumpdir'; Runnin…