free SSL/TLS certificate
Archive for posts tagged free SSL certificate. I will mostly cover topics related to free SSL/TLS certificate and how to properly use free SSL/TLS certificate.
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MikroTik Hotspot HTTPS Redirect with Free SSL Certificate
SSL Certificate is required to enable HTTPS Login and HTTPS Redirect in MikroTik Hotspot. In one of my last articles I discussed how to configure MikroTik Hotspot HTTPS redirect and HTTPS login with MikroTik self-signed certificate. But self-signed certificate is not trusted by operating system. So, we get the following two issues if we configure HTTPS Login and HTTPS Redirect with self-signed certificate. Ask to proceed unsafe site: As browsers cannot trust self-signed certificate, it shows a warning message and asks to proceed unsafe site every time the login page redirected with HTTPS redirect. Users may face disgusting seeing this warning message again and again. Error or Warning icon in URL bar: Although we proceed the login page warning, browser also shows a red or yellow icon in URL bar. It also makes us confused whether the connection is secured or not. Although self-signed certificate always establish secure connection by encrypting data, the above two issues make us confused and disgusting sometimes. To solve the above two issues we need to use public CA certificate that will be trusted by operating system and browsers. Public CA requires yearly subscription fee to get their service. Although this payment is not so [...]
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How to Create Free SSL/TLS Certificate with OpenSSL | July 23, 2021
SSL/TLS certificate is required to encrypt data sent over internet communication. Without encryption, the sent data can be hacked by the middle man attack. SSL/TLS certificate is usually a pair key, public key and private key, solution where data is encrypted with public key and decrypted with private key. In public communication, public key is required to be signed by a CA (certificate authority) but in private communication, there is no need to be signed by any CA. If we [...]
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How to Import SSL Certificate in MikroTik RouterOS | January 16, 2022
SSL/TLS Certificate is used to make secure communication between server and clients. MikroTik RouterOS has a lot of services such OVPN, SSTP VPN, HTTPS, Hotspot and so on those use SSL/TLS certificate. It is possible to create self-signed certificate in MikroTik RouterOS but self-signed certificate faces untrusted CA warning. So, it is always better to use trusted CA either freemium or premium. In my previous article, I discussed how to get a free SSL/TLS certificate from Zero SSL but Zero [...]
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How to Get Free SSL Certificate from ZeroSSL | June 13, 2020
SSL/TLS certificate is an essential part in today internet communication. Online communication cannot imagine without SSL/TLS certificate. SSL/TLS certificate makes online communication secure by encrypting data transmitted over public internet. So, most of the applications (Web, Email and VPN services) those transmit data over public internet use SSL/TLS certificate to secure communication. SSL/TLS certificate requires to be signed by Certificate Authority (CA). It is possible to create self-signed certificate with SSL certificate creation tools such as OpenSSL. Some router venders [...]
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OpenVPN Configuration over Port 443 on Ubuntu Linux | June 20, 2022
OpenVPN provides a secure and encrypted VPN tunnel across public network. Unlike PPTP and L2TP VPN Services which can be blocked, OpenVPN can highly be customized and even can be run over so popular TCP Port 443. So, OpenVPN cannot easily be blocked. OpenVPN uses SSL/TLS Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data across public network. OpenVPN Server can easily install on Ubuntu Server. Installing OpenVPN Server on Ubuntu Server, we can connect Windows, [...]
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Apache2 Web Server HTTPS Configuration on Ubuntu Server | August 15, 2021
Data transmission between web server and web client over port 80 (HTTP) is not encrypted. So, any middle man between web server and web client can view transmitted data and can steal secret information. To overcome this limitation, HTTPS Protocol over port 443 has been introduced. HTTPS is a secure web server that is configured with SSL/TLS certificate. TLS (Transport Layer Security) and its predecessor SSL (Secure Sockets Layer) are web protocols used to wrap normal traffic in a protected, [...]
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MikroTik OpenVPN Configuration on TCP Port 443 with Windows OS | April 6, 2020
MikroTik OpenVPN is an amazing VPN solution. IT provides a secure and encrypted VPN tunnel across public network. Unlike PPTP and L2TP VPN Services which are poorly designed and can easily be blocked, OpenVPN can highly be customized and even can be run on so popular TCP Port 443. So, OpenVPN cannot easily be blocked. OpenVPN uses SSL/TLS Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data across public network. OpenVPN is a site to site [...]
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