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Technical notes, cheatsheets, and deep dives into modern development.
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How to Read Your ceph df Output
Part 1: Spinnaker & GKE /w Canary Deployments Download a sample application, create a Git repository then upload it to a Google Cloud Source Repository. Build the container image. Create triggers to re-build container images on application changes. Configure a… Read more
In MariaDB Cluster, the Server replicates a transaction at commit time by broadcasting the write set associated with the transaction to every node in the cluster. The client connects directly to the DBMS and experiences behavior that is similar to… Read more
The Mail Status Probe can help you to identify potential configuration problems as well as help find the source of large amounts of mail being sent through the server. Identify spammer issue will help to keep your ip reputation of… Read more
Fail2ban is a tool that can be used to protect servers from brute-force attacks and other forms of malicious activity. It works by monitoring log files and blocking IP addresses that show signs of malicious activity, such as repeated failed… Read more
This time writing about how to check triggered ModSecurity rules on Nginx audit logs. This useful to check triggered ModSecurity rules on nginx audit logs for which rules ID, IP and URL of related connection. Here’s the command #grep “\[id”… Read more
Based on Ceph health status in my cluster, we see there is one pg with inconsistencie issue; #ceph -s We need to find the related pgs and perform deep-scrup to this spesific pg in order to remove this error.# ceph… Read more
Ceph is a popular open-source distributed storage system that is widely used for storing and managing large amounts of data. It is known for its scalability, reliability, and performance, making it a popular choice for many organizations. If you’re considering… Read more