Start Stop Firewall
Let us see how to stop and disable Firewalld on a CentOS or RHEL 7.x based system. Is firewalld running on my system? sudo firewall-cmd --state S…
2023
Skills needed for google software engineer
Introduction So are you thinking of landing your dream job as a Software Engineer at oogle? You are at the right place :) We are going to provide you…
mysql 8.0: Reset mysql root password
Reset a MySQL root password Use the following steps to reset a MySQL root password by using the command line interface. Stop the MySQL service (Ubu…
mysql 8.0: set Root password ubuntu
1. install mysql using cmd sudo apt install mysql-server 2. after install connect to mysql cmd: sudo mysql -u root 3. reset password using below …
OHS: start opmnctl failed (can't open an encrypted wallet)
"start opmnctl - does not work " Logs shows below error: [Thu Dec 09 16:22:45 2010] [error] Server virt11gr1: 443: can't open an encr…
Oracle: Create Self-Signed SSL Certificates
openssl genkey (Linux) keytool (Java) orapki (Oracle) Converting Between Keystores and Wallets (orapki) openssl The openssl command l…
OHS Startup failed: "NZ Library Error: Unknown error"
# ohs1.log file : [ 2017-04-16T14:19:35.0074+00:00 ] [ OHS ] [ ERROR:32 ] [] [ core.c ] [host_id: soahost1.raastech.com] [host_addr: 192.168.1.13] [p…
OHS Error: Unable to initialise SSL environment
Issue: Error: nzos call nzos_RetrievePersonaCopy returned 28788 Error: 2017-07-11T02:31:17.0775-04:00] [OHS] [ERROR:32] [] [core.c] [host_id: myhos…
OHS Start Failed: Nzos Call NzosSetCredential Returned 28791
Issue is due to more than one user certificate in the Wallet. "orapki display" command output showing two User Certificates: % orapki wal…
List of common exit codes for GNU/Linux
Exit Code Description 0 Success 1 Operation not permitted 2 No such file or directory 3 No such process 4 Int…
Podcasts for Software developers !
The ChangeLog The ChangeLog recently celebrated 10 years and is a longtime favorite of many on the team. It’s …
20 things about Programming !
1. Wait, how did this ever work? There’s a specific experience all developers have had, and I’ve never had it outside of programming. You’re trou…