First assuming that compatible hardware is available, get compatible SODIMM RAM. and identify type of hard disk your laptop can use.
General idea, check the laptop user manual to identify what are the maximum RAM that are supported total, what are the maximum RAM supported in a slot. And importantly does the motherboard chipset of your laptop supports SODIMM that are different capacity. Clock speed as long as its higher than the laptop spec, the motherboard chipset will automatically tune the RAM Clock speed to match the maximum speed supported by the motherboard.
For context, the old laptop for upgrade is an Acer Aspire E5-475 which comes with 4GB RAM, 1TB HDD that has an Intel i5-7200U CPU at 2.5GHz.
Generally, a laptop should be serviceable, however by opening the service area, it will void the laptop warranty, ACER Aspire E5-475Continue reading →
A little bit of effort to search the net and encountering the solution, powershell will is a simple way to measure time spent executing a command. In Linux environment, time command can be used, but in this post, it is limited to Windows environment.
Based on the conventional wisdom from the documentation of Measure-Command of powershell. The command would be as follows:
Measure-Command {vagrant up}
However, by running the above powershell command, the output to the screen will be not available.
Total time spent for the command to end, 50 minutes plus.
Conclusion, measure-command is easy way but lack of detail such as time spent on CPU, IDLE time and network operations time. It will not be suitable for use if more details are needed.
It is simple to make your computer in your home LAN accessible from internet.
The pre-requisite would be understanding how Network Address Translation works. To make the dynamic IP of ISP provide to your home internet access, feel free to research into finding Dynamic DNS providers. This will make it easier than using websites like whatismyip.com . And you just need to fire up the RDP client, and use the Dynamic DNS FQDN which will be always pointing to your static IP.
Depending on the network equipment used in your home or provided by your Internet Service Provider (ISP), you may need to look for NAT or in my case IPv4 port mapping.
The screenshot above, shows how to create a NAT mapping or a IPv4 port mapping for a computer with LAN IP, 192.168.100.12, take note that the port of RDP is 3389 and the protocol used is TCP. Hence, the internal port must be numbered 3389.
External port set to 3389 are for the sake of simplicity.
If there are more host in your LAN need to be accessible from the internet remotely using RDP, there is no need to change the default port of RDP of your host.
Instead, use the known port that is not blocked by your ISP. Example assuming that higher port numbers are not blocked by your ISP, you could use 13389, or 23389, or 33389 or 43389, or 53389 or 63389, as long as it is not more than 65535 or lesser than 1024. Those port number can be used as the External port number, while maintaining the internal port number to 3389.
GROUND RULE or RULE OF THUMB of DNS, NEVER change the NS record of your domain in your Domain registrar before completing setup of your DNS server. The result may cause 72 hours of outtage.
Using my domain karmeng.my as an example, the objective is to have chow.karmeng.my to be a valid domain for email hosting which offers customed domain.
At the time of this post, the compatibility matrix of vagrant and VirtualBox is as follows:
Vagrant version
VirtualBox version
2.3.7
7.0.10
7.0.12
Vagrant and Virtualbox compatibility matrix
Unfortunately, Vagrant 2.4.0 does not work well with VirtualBox 7.0
This post was created using Vagrant 2.3.7 and VirtualBox 7.0.10
To make Vagrant possible, after installing the Vagrant from hashicorp webpage, a Vagrant file needs to be created. The most basic file that needs to exist in your Vagrant to work is a folder with Vagrantfile
Additional post start up scripts to complete the installations that are used in this example are setup.sh, install_ansible.sh, install_boto3.sh and install_python3.sh
Steps: Creating a Ubuntu AWS instance 1. Click on “Create Instance”
2. Select OS only, and choose your favorite Linux distro, in my case Ubuntu were chosen. At the time of this blog post created, the openvpn install script works on both ubuntu 22.04 and 20.04
The misadventures started when attempting to migrate this blog from webhost to AWS. Amazon Lightsail was used as it was an easier option and it is friendly for the wallet.
Request to have AWS to increase the quota for my AWS account. Started on 31st July 2023. After login into the dashboard of AWS web console, click on your user name on the upper right, then click Service Quotas.
