Database Flashback: The Lesson I Learned This piece is not about features or products. It's about lessons that we learn or not. The one I learned some twenty-three years ago was: "Don't ask for troubles and do one thing at a time."
Containers Docker: Logn Errors Recently, I spent some time trying to find why I can not push my just-from-the-own image into the GitLab project registry. The message "illegal base64 data at input" is a bit confusing, but the solution is simple.
Bash Bash scripts to diagnose network issues These are 2 simple scripts I wrote that run various types of tests to help diagnose network issues between a source and target. They can be safely run as a non-root user as long as the commands exist. Script 1 - Various network testsThis
Ansible Ansible: Dynamic Inventory I know that Ansible could use as inventory virtually anything, including scripts. However, all inventories on my day job are static, and we keep them in a source repository, and until now, I haven't had a chance to create or use one.
A Simple Token Generator My friend's given me a perfect tip: "Whenever I need a random sequence of characters, I use OpenSSL rand functions." And to be a bit fancy, I pick the value
Bash Bash script to test port availability I created a quick script to test if a port is consistently available between a source server to a target server for the purpose of gathering statistics to see if there are any network hiccups not. This is a very simple and straightforward script.
Terraform Sensitive data in Terraform Terraform is probably the best choice to manage your infrastructure as a code. And if we are talking code, let's see how you can keep sensitive information away from your code repository.
Ansible Ansible: Markdown Reports The previous post promised a simple reporting solution and two potential possibilities. Now it's time to go through the solution that would help you with report publications. The diagram from
SSH Connecting with a private key using SSH and SFTP SSH uses public/private key pairs. id_rsa is your RSA private key (do not share this!). id_rsa.pub is your RSA public key; this you give out to the administrator of the target system so that they can add it to verify
Ansible Ansible: Format e-mail body. The whole automation idea is to minimize or exclude humans from the process. However, you need to notify users and sometimes you should do it in style.
WebLogic Getting "The payload data size exceeds the configured payload threshold size" in WebLogic An Oracle SOA Suite 12c composite was consuming files via inbound polling on the FTP Adapter. The file size was larger than 10MB and we got a Payload Size Exceeds Threshold. The payload data size: "" exceeds the configured payload threshold size: "": Option #1: Update
Ansible Ansible: Simple Reports Any IT system, bigger than a chihuahua, ought to produce reports. It does not matter how they look, but it should generate and share information that humans can read.
WebLogic Setting up single and multiple WebLogic NodeManagers in the same machine If you have multiple Oracle WebLogic Server 12c domains on a single machine, can each domain have its dedicated Node Manager? Can a single Node Manager manage all the domains in this machine? Yes and yes. Multiple Node Managers on a Single MachineIf you
WebLogic Regenerating the 'DemoIdentity' certificate in WebLogic 12c I recently encountered an Oracle WebLogic 12c environment that was installed 5 years ago, and whoever set it up at the time settled on using the included demo certificate created with the installation. Unfortunately, this demo cert expires after 5 years and now they
WebLogic WebLogic managed server RUNNING but with 'Failed' health On Oracle SOA Suite 12c (and technically Oracle WebLogic Server 12c), I noticed that a couple of managed servers were in a RUNNING state but the health was reporting Failed. What could cause this particular scenario? In this domain, the TLOGs were persisted in
BPEL Getting "Element 'binding.rest' not expected" in BPEL I created a BPEL process and attempted to add the property oracle.webservices.http.headers to my reference as shown below. However, during compilation, I received the following error: Error(39,100): schema - (Error) Element 'binding.rest' not expected. SolutionMove the <binding.
Ansible Ansible, YAML, and JSON Ansible is very flexible with data types, and easily transforms primitives and even JSON strings, but from time to time you need to process and transform something a bit more complex than String to Boolean conversions.
Ansible Ansible: Iterations Iterations in Ansible are not first-class citizens. The language allows you a single task loop with one nested iteration. Anything more sophisticated than that should be implemented as a separate module. Again, the include_tasks command gives us a helping hand.
Ansible Ansible: Selections Let's discuss selections in Ansible: if-then-else and case/switch operators. Ansible offers conditional execution for single tasks, blocks, and task imports. In addition, it allows effectively simulate if-then selection.
SQL*Plus Getting `ORA-00933: SQL command not properly ended` due to blank line What's strange is that a SQL script someone wrote (which apparently was running fine for months) seemed to return an ORA-00933: SQL command not properly ended error when executed through the Linux command line, as shown below: oracle@dbhost:/home/oracle> /u01/sqlplus/instantclient_
BPEL Don't let the '&' confuse you when viewing Oracle SOA instances on a web browser Man... dealing with & (ampersands) in SOA, web services, XML, and REST sucks. Dealing with special characters in general sucks-having to figure out if the product or tool is escaping/encoding them for you or not. Recently, I had to update my BPEL process
JDeveloper Working around messy REST references using WSDL interfaces in JDeveloper I recently ran into multiple issues with Oracle JDeveloper 12.2.1.4 when trying to call external REST web services from a BPEL project. It was quite painful and
JDeveloper Getting java.lang.NoClassDefFoundError in JDeveloper Native Format Builder for JSON Apparently I've run into an issue with Oracle JDeveloper 12.2.1.4.0 when using the Native Format Builder against a JSON file. Other online posts point to Oracle
Documentation My template for technical installation documents As a technical administrator, I often recommend creating high quality document deliverables. In a typical installation document, I am adamant about including certain sections which I normally don't seen many
Now on Telegram The Ghost blog platform offers powerful integration capabilities. From the early days, we have enabled RSS feed, available practically out of the box. In addition, pre-configured integrations with modern automation
