AWS news analysis and DevOps guides.

AWS news analysis and DevOps guides from the engineers who run production AWS for regulated teams. The Linux and sysadmin archive goes back to 2009.

AWS

[Announcement] Amazon RDS for PostgreSQL 12 will reach end of standard support on February 28, 2025. Upgrade your database before March 1, 2025.

24 March 2025·2 min read

If you have received this message from AWS, you need to act quickly to avoid surge in your AWS bill. Attention AWS RDS Users Utilizing PostgreSQL 12: PostgreSQL 12 is nearing its...

Read article →
Security

Cyber Security – Monthly Exploitation Trend Report – Feb 2025

21 February 2025·4 min read

Top 10 CVEs 2025 – January-February SL.NO CVE Vulnerability Vendor Service Version CVSS Severity 1 CVE-2025-0316 authentication bypass Chimpstudio WP Directory box Manager 3.1 9.8 CRITICAL 2...

Read article →
Security

Windows Themes zero-day bug exposes users to NTLM credential theft

30 November 2024·1 min read

A New Bypass Detected by ACROS Security A new zero-day vulnerability has been exposed recently! The newly discovered zero-day bug on Windows Theme files is exposing people’s NTLM credentials. It is...

Read article →
AWS

[Action Required] Deprecation of Amazon RDS M4, R4, and T2 database instance types on MySQL, MariaDB, and PostgreSQL [AWS Account: ]

21 February 2024·2 min read

You have probably landed here with an email notification received from AWS. You are not alone! Yes, AWS is indeed deprecating the M4, R4, or T2 instance types. So you should migrate your instance to...

Read article →
WordPress

How to Add Expire Headers in WordPress and Enable Leverage Browser Caching

15 February 2024·1 min read

IssuePagespeed is complaining about Leverage browser caching. EnvironmentWordPress Hosting.Websites running on Apache web server.All shared hosting accounts. SolutionAdd the following content to your...

Read article →
Security

CVE-2024-46188 Fake WordPress Security Alert and WP Takeover

5 February 2024·2 min read

We wanted to give you a heads up about a recent phishing attempt targeting WordPress users. Some of you might have received a deceptive email claiming to be from the WordPress Security Team. This...

Read article →
AWS

How to restrict s3 readable only from certain IP addresses or CloudFlare Only

21 November 2023·1 min read

In many scenarios, it becomes crucial to control and limit access to your S3 bucket to specific IP addresses. Recently, we encountered a situation where we needed to grant access exclusively to...

Read article →
CentOS

Failed to create temporary file: /var/lib/mod_security/20xx

27 October 2023·1 min read

Today, the developer reported that the he is not able to upload some files. As we checked, we were getting the following error on mod_security log. It looks like apache is getting denied while...

Read article →
AWS

How to verify the AWS ec2 RSA key Fingerprint – SOLVED

9 October 2023·1 min read

Sometimes, the SSH key that you have or shared by another person may not be letting you in. In such cases, we need to compare the fingerprint of the key with the one showing on your AWS console. By...

Read article →
AWS

AWS Lambda Task timed out after 3.02 seconds [SOLVED]

11 August 2023·1 min read

Dealing with AWS Lambda timeouts? Don’t fret, I’ve got you covered! Go to the AWS Console and Navigate to the Lambda Console. Click on your Lambda function name you are facing issues with. Head to...

Read article →
AWS

How to create a new sudo / super admin / wheel user in AlmaLinux CentOS Ubuntu

10 December 2022·1 min read

The “wheel” user has special privileges that allow it to perform administrative tasks on the system. To create a wheel user, follow these steps: That’s it! You’ve successfully created a new wheel...

Read article →
AWS

How to configure ELK stack on Almalinux 8 / CentOS

10 December 2022·2 min read

o configure ELK on AlmaLinux 8, you will need to first install the Elastic stack on your system. This can be done by following these steps: After completing these steps, your ELK stack should be...

Read article →

Reading this because your AWS bill or uptime is a problem?

30 minutes, direct with the founder, no sales pitch: one specific recommendation for your AWS workload.

Book a free 30-minute review
30 min Free Consultation →