Generate Free SSL Certificate using ZeroSSL

 Hi all,

Today I am going to explain the process of generating free SSL certificate using ZeroSSL

Pre-requisite

1. We should have our own domain
2. We should be able to add/update the DNS settings like A, CNAME, TXT records

Best free SSL providers

As per my research I found the best free SSL (90 days) certificate providers

1. ZeroSSL
2. Let's Encrypt

In this blog, i'll explain ZeroSSL process

ZeroSSL Free SSL Certificate

1. Navigate to https://zerossl.com/
2. Signup with your email by clicking on "FreeSSL"
3. After email verification, login to zerossl site
4. Click on "New Certificate"
5. 
6. Enter your domain name and click on "Next Step"
7. Default validity is 90 days for free SSL
8. 
9. In the CSR section we have couple of options
10. Default is Auto-Generate CSR enabled
11. Disable Auto-Generate CSR - only your zerossl registered email address with default values
12. Enable Paste Existing CSR - If you have already created a CSR then you can use this option
13. 
14. Finalize your order
15. 

Note

ZeroSSL will generate the certificate using signature algorithm SHA-384

In some cases, if SHA-384 based SSL is not valid then we have to mandatory go for alternate "Let's Encrypt". I will explain Let's Encrypt in my next blog.

For every 90 days, we need to renew our certificate in the above mentioned manner.

Download Certificate

1. Navigate to Certificates section
2. Go to Issued tab
3. 
4. Click on "Install"
5. 
6. You can select the Default Format dropdown to select specified server or just leave it default.
7. Download the certificate zip file which will contain 
1. ca_bunder.crt - CA Bundle
2. certificate.crt - Certificate
3. private.key - Private Key

Hope, you will be able to make use of this free SSL feature and encrypt your domain traffic.

Please let me know your feedback and suggestions in comments or mail to psrdotcom@gmail.com

Change IP Address and DNS from static to DHCP and vice versa in Windows Command Line Dynamically using Batch file script

Hi friends,

I was frequently changing my system network from static to dynamic.

I was fed-up with the manual changes by entering the static IP address and changing it to dynamic.

I though of creating a batch file, which requests user to select options and proceed further.

 

I found something on Internet, just modified it for my purpose and thought of sharing with you all.

 

• Check your network name
• cmd> netsh interface show interface
• It will list all the network interfaces connected to your system
• Select the network which you want to change the settings
• Modify the below code with appropriate network name, IP address, subnet, gateway and DNS server

@echo off

set NETWORK="Local Area Connection"
set IP=10.9.40.95
set SUBNET=255.255.255.0
set GATEWAY=10.9.40.47
set DNSSERVER=192.168.178.1

echo Choose:
echo [S] Set Static IP
echo [D] Set DHCP
echo.

:choice
SET /P C=[S,D]?
for %%? in (S) do if /I "%C%"=="%%?" goto S
for %%? in (D) do if /I "%C%"=="%%?" goto D
goto choice

:S
@echo off
echo "Setting Static IP Address, Subnet Mask and DNS Server"
netsh interface ip set address %NETWORK% static %IP% %SUBNET% %GATEWAY% 1
netsh interface ip set dnsservers %NETWORK% static %DNSSERVER% primary
netsh interface ip show config
pause
goto end

:D
@echo off
echo "Resetting IP Address, Subnet Mask and DNS server For DHCP"
netsh interface ip set address name=%NETWORK% dhcp
netsh interface ip set dns %NETWORK% dhcp
ipconfig /renew

echo "New IP Address, Subnet Mast and DNS Server for %computername%:"
netsh interface ip show config
pause
goto end

:end

Now enjoy the feature of changing IP address with 3 clicks

 

Please send your feedback and comments to psrdotcom@gmail.com

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