Technology Errors

svn co Error: Server certificate verification failed: issuer is not trusted

When attempting to sync a repo to a server or to your desktop you will receive an error if the certificate being used to protect the HTTPS repository URL is not issued by the proper authority. Many companies generate their own certificates for repository URL’s especially if the repository is primary used internally. In this example I was attempting to sync a repository using SVN to a folder on the desktop of my Macbook Pro running OSX Mountain Lion. Below I describe the error in more detail followed by resolution to the svn certificate error.

Technology Errors

sqlplus Error: ORA-12560: TNS:protocol adapter error

Again I am fairly new to Oracle so it has been quite a learning process and typically I have been running into errors that are easy to resolve but being able to locate the answers easy has been challenging. While attempting to use sqlplus.exe from the Windows 7 command line I continued to receive a TNS protocol adapter error and it turns out it was simply from using the incorrect syntax. Below I describe the error in more detail as well as the correct syntax to use for sqlplus on Windows 7.

Technology Insights

Redmine: The following error occured while sending email notification: 530 5.7.0 Must issue a STARTTLS command first.

Recently while working on a CentOS Linux server I downgraded Ruby version 1.8.7 p302 to Ruby version 1.8.6 p399 because of a project that was built for Ruby 1.8.6. The server is a development CentOS Linux server with numerous other projects already operational on it and so downgrading Ruby caused a couple issues one of which was with Redmine project management software. The issue was with sending email notifications for things such as file uploads, added issues, issue updates, etc. Below I describe the error in more detail, the reason for the error, and how to resolve the error sending email notifications.