Zen LiuUsing Docker to build a testing environment for upgrading php and WordpressRecently one of my client’s web hosting forced to upgrade the php version. Either follow the upgrade or pay extra money for backward…Apr 20Apr 20
Zen LiuAWS RDS out of capacity!?Recently I had tried to create a relatively large instance (db.m6i.8xlarge) and got the below error message. For the subnet group, I added…May 7, 2022May 7, 2022
Zen LiuHow to assign Elastic IP to Amazon API gateway?Amazon API gateway is a very useful service to build comprehensive RESTful API but we cannot assign EIP to it directly. So how can we do…Dec 5, 20203Dec 5, 20203
Zen LiuAWS EC2 port restrictionWhen I work with my colleague for an application on EC2 which need to send out email by SMTP using port 25, we found that the application…Jun 24, 2020Jun 24, 2020
Zen LiuAmazon Workspaces setup with MFADue to the COVID-19, many companies need to find some ways to enable remote working. VDI solution is one of their choices. Amazon…Jun 7, 20201Jun 7, 20201
Zen LiuAWS EFS backup and file level restore using AWS BackupAWS announced an awesome feature of AWS Backup for AWS EFS Item-Level Recovery on Jan 13, 2020. Let’s go through this awesome feature step…Feb 10, 20201Feb 10, 20201
Zen LiuUsage of SSL certificate list in AWS ALB and some remarks from setup processLast week, one of my colleagues raised a question about the possibility of using multi SSL certificates (not SAN certificate) in a single…Nov 23, 2019Nov 23, 2019
Zen LiuSysbench 1.1 installation for AWS EC2 instance running Amazon LinuxSysbench is a scriptable multi-threaded benchmark tool based on LuaJIT. It is most frequently used for database benchmarks, but can also…Nov 7, 20194Nov 7, 20194
