awstats
Advanced Web Statistics
ethstatus
Console-based ethernet statistics monitor
gitstats
Generates statistics based on GIT repository activity
iptstate
A top-like display of IP Tables state table entries
iostat
Report Central Processing Unit (CPU) statistics and input/output statistics for
devices, partitions and network filesystems (NFS)
netstat
netstat – Print network connections, routing tables, interface statistics, masquerade connec-
tions, and multicast membership
netstat-nat
A tool that displays NAT connections
ifstatus
Command line real time interface graphs using ncurses
pipestat
Watches data flowing over an anonymous pipe
vnstat
Console-based network traffic monitor
smemstat
Shared memory usage monitoring tool
sysstat
The sar and iostat system monitoring commands
statsd
A simple, lightweight network daemon to collect metrics over UDP