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Nginx Overview Nginx is a high-performance HTTP server and reverse proxy known for low memory usage and strong concurrency support. It serves static content efficiently and handles dynamic content via CGI protocols like Perl and PHP, but requires Tomcat for Java applications. Optimized for high-load environments, Nginx supports up to 50,000 con ...

This experiment builds upon previous firewall configurations, expanding functionality with dual-hot standby setup and bandwidth control. For foundational knowledge, refer to prior articles covering NAT and intelligent routing, as well as security policies. Experiment Overview DMZ servers accessible only during office hours (9:00–18:00) by the ...

INFINI Gateway OverviewINFINI Gateway is a specialized application gateway engineered specifically for Elasticsearch deployments, focusing on enhancing cluster performance, security, and operational manageability. Acting as a front-end proxy, it intercepts all client requests before forwarding them to backend Elasticsearch clusters, offering ad ...

Starting the Service and Enabling Auto-Start On lb01: [root@lb01 nginx]# systemctl start keepalived.service [root@lb01 nginx]# systemctl enable keepalived.service On lb02: [root@lb02 ~]# systemctl start keepalived.service [root@lb02 ~]# systemctl enable keepalived.service Packet Capture Analysis with Wireshark Once the service is running, cap ...

In distributed environments, eliminating static endpoint configurations is essential for elasticity. Netflix Eureka provides a RESTful registry that tracks application instances dynamically, enabling automatic failover and load distribusion across cloud infrastructures. Instance Declaration & Registry Operations Applicaitons must advertise ...

Start Nacos console Nacos GitHub official address: https://github.com/alibaba/nacos Download the package from the address and extract it to a local directory cd into the bin directory and run startup.cmd -m standalone Access the console address, default username and password nacos Console address: http://localhost:8848/nacos Register service ...

Installing Dependencies yum install openssl -y yum install zlib -y yum install pcre -y Add the official Nginx repository: rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm Installing Nginx yum install nginx -y Managing Nginx Service systemctl start nginx # Start Nginx systemctl restart ngi ...

Environment Setup and Nginx CompilationBegin by installing the necessary compiler and development libraries required for Nginx to function properly, including support for SSL and regular expressions.yum install -y gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel Extract the source archive and navigate into the directory. Execute th ...

3.4 Packet Capture in Linux ARP Resolution Process: Wireshark packet capture workflow # Install packet capture software yum install -y wireshark # Capture ARP packets on interface eth1 tshark -i eth1 -f arp # Sample output: # 1 0.000000000 Vmware_2e:aa:48 -> Broadcast ARP 42 Who has 172.16.1.51? Tell 172.16.1.61 # 2 0.000263929 Vmware_c ...

Ingress Overview Layer 7 Load Balancing Requirements When clients access Kubernetes services, Layer 4 load balancers cannot terminate SSL sessions. This creates two significant issues: clients must establish direct SSL connections with backend pods, and if a request is routed to a different server after the SSL session is established, the sessi ...