Since version 58, Chrome requires SSL certificates to use SAN (Subject Alternative Name) instead of the popular Common Name (CN), thus CN support has been removed. If you’re using self signed certificates (but not only!) having only CN defined, you get an error like this when calling a website using the self signed certificate: Here’s how… Leer más »
https://jamielinux.com/docs/openssl-certificate-authority/sign-server-and-client-certificates.html
Guide to Deploying Diffie-Hellman for TLS Our study finds that the current real-world deployment of Diffie-Hellman is less secure than previously believed. This page explains how to properly deploy Diffie-Hellman on your server. We have three recommendations for correctly deploying Diffie-Hellman for TLS: Disable Export Cipher Suites. Even though modern browsers no longer support export… Leer más »
Setting up a SSL Cert from Comodo These are the steps I went through to set up an SSL cert. Purchase the cert Prior to purchasing a cert, you need to generate a private key, and a CSR file (Certificate Signing Request). You’ll be asked for the content of the CSR file when ordering… Leer más »
in WordPress. Simply paste the following code anywhere you like in your theme files (such as footer.php). 1 <?php echo get_num_queries(); ?> queries in <?php timer_stop(1); ?> seconds. And refresh the page. You will see the number of queries and the execution time.
fail2ban-client status fail2ban-client status sshd fail2ban-client set sshd unbanip IPADDRESSHERE
Introduction While connecting to your server through SSH can be very secure, the SSH daemon itself is a service that must be exposed to the Internet to function properly. This comes with some inherent risk and offers a vector of attack for would-be assailants. Any service that is exposed to the network is a potential… Leer más »
https://letsencrypt.org/ https://www.sslforfree.com/ How It Works Let’s Encrypt is the first free and open CAWe generate certificates using their ACME server by using domain validation. Private Keys are generated in your browser and never transmitted.For modern browsers we generate a private key in your browser using the Web Cryptography API and the private key is… Leer más »
he package ifupdown and so /etc/network/interfaces are no longer used. Ubuntu 17.10 Server uses the package netplan instead, which configures systemd-networkd. Make sure you use the default content for the config file /etc/network/interfaces # /etc/network/interfaces — configuration file for ifup(8), ifdown(8) # Generated by debian-installer. # The loopback interface auto lo iface lo inet loopback… Leer más »
ps_mem.py. git clone https://github.com/pixelb/ps_mem.git cd ps_mem sudo ./ps_mem.py