Linux
From Igor personal wiki
Contents
OS[edit]
Hardware[edit]
Software[edit]
Network[edit]
Security[edit]
Linux workstation security checklist
ispy is a python tool for monitoring the output of terminals and processes
Tools[edit]
Perfomance monitoring:
Netflix at Velocity 2015: Linux Performance Tools
Old school: top, iostat, mpstat, vmstat, sar
New: htop, iftop, iotop, mytop(Mysql), iptraf, goaccess(real time web server log parser), Nethogs !
Network: socat, nc(netcat), minicom
In development: ethstatus, ifstatus
Network troubleshooting:
mtr - (analof of microsoft pathping) pinging on Level 2 using IP or MAC
arping -I eno1 -c 3 10.0.51.60
Detecting duplicate Ips
arping -D -I eno1 -c 2 10.0.51.45 ; echo $?
if exist status 0 - no response received - nobody using this IP - no duplicaes scanning on L2 level for any computer in subnet
arp-scan --interface=eno1 192.168.224.0/24
Telnet analog of UPD or nice way to check udp connections:
send:
echo "hello" > /dev/udp/10.0.51.60/10
receive:
tcpdump -vvvvXn udp dst portrange 1-20
