ProxySQL is a high performance database aware proxy for MySQL and MariaDB servers. ProxySQL can be deployed in a cluster and supports dynamic routing of SQL traffic to multiple backend database servers for high availability and efficient workload management. ProxySQL Installation The following deployment is based on Ubuntu 22.04 with…
As more and more business-critical applications move to the cloud, ensuring that your network infrastructure can handle the traffic and deliver optimal performance is becoming increasingly important. Linux, being one of the most popular operating systems used for hosting servers, provides several built-in tools to fine-tune the network performance. In…
On Linux Servers With IPTABLES Rate limiting is a technique used to control the rate at which network traffic is sent or received. It can be used to prevent network congestion and protect against malicious attacks such as denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks. One way to implement rate…
Wordpress is one of the widely deployed CMS platforms and it is also very popular target for hackers. In order to provide security to Wordpress deployment we can configure the web server with private IP and publish the website using a Reverse Proxy. The following guide provides details on installing…
DRBD provides replication of storage across multiple servers. Its a software solution to perform block level replication. DRBD is able to perform real-time replication of data which is transparent to the upper layer applications. The replication can be done synchronously or asynchronously. The DRBD block replication requires a raw disk…
The following guide outlines the deployment methodology and installation instructions for DNS based Global Load Balancing service. The solution includes PowerDNS Authoritative application deployed on Centos 7.9 servers. The application supports static as well as dynamic DNS records. The dynamic records contain small snippets which can perform different checks based…
NGINX can be deployed as a reverse proxy in front of applications and can be used to control access to the application based on the GEO Location of the end user. NGINX can be used to restrict access to different parts of applications for specific countries or cities. NGINX uses…
NGINX can be deployed in front of web applications to improve the response time (by caching) and to provide additional layer of security. NGINX can perform the functions of Reverse Proxy, SSL Offload and Load Balancing for the Web Applications. The following guide outlines the deployment methodology and installation instructions…
The following guide outlines the deployment of FreeIPA Identity management solution. The solution provides centralized identity management for Linux and LDAP clients. The solution also includes authentication and authorization controls. FreeIPA is an integrated security information management solution combining Linux (Fedora), 389 Directory Server, MIT Kerberos, NTP, DNS, Dogtag (Certificate…
The following guide outlines the deployment methodology and installation instructions for deploying DNS Anycast Infrastructure. The solution comprises of DNS Load Balancers (dnsdist) which sit in front of the Caching DNS Servers and Load Balance the DNS queries among the backend DNS Servers. For advertising the Anycast IPs BGP routing…
