## Monitoreo Netdata - IPv4 networking (bandwidth, packets, errors, fragments, tcp: connections, packets, errors, handshake, udp: packets, errors, broadcast: bandwidth, packets, multicast: bandwidth, packets) - IPv6 networking (bandwidth, packets, errors, fragments, ECT, udp: packets, errors, udplite: packets, errors, broadcast: bandwidth, multicast: bandwidth, packets, icmp: messages, errors, echos, router, neighbor, MLDv2, group membership, break down by type) - netfilter / iptables Linux firewall (connections, connection tracker events, errors, etc) - Linux DDoS protection (SYNPROXY metrics) - Processes (running, blocked, forks, active, etc) - Entropy (random numbers pool, using in cryptography) - NFS file servers, v2, v3, v4 (I/O, cache, read ahead, RPC calls) - Network QoS (yes, the only tool that visualizes network tc classes in realtime) - qos-tc-classes - Linux Control Groups (containers), systemd, lxc, docker, etc - Applications, by grouping the process tree (CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets, etc) - apps - Users and User Groups resource usage, by summarizing the process tree per user and group (CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets, etc) - Apache web server mod-status (v2.2, v2.4) - Nginx web server stub-status - mySQL databases (multiple servers, each showing: bandwidth, queries/s, handlers, locks, issues, tmp operations, connections, binlog metrics, threads, innodb metrics, etc) - ISC Bind name server (multiple servers, each showing: clients, requests, queries, updates, failures and several per view metrics) - Postfix email server message queue (entries, size) - Squid proxy server (clients bandwidth and requests, servers bandwidth and requests) - Hardware sensors (temperature, voltage, fans, power, humidity, etc) - NUT UPSes (load, charge, battery voltage, temperature, utility metrics, output metrics) - Tomcat (accesses, threads, free memory, volume) - PHP-FPM (multiple instances, each reporting connections, requests, performance) - SNMP devices can be monitored too (although you will need to configure these)