User talk:Ksaareme: Difference between revisions
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== Useful linux commands == | == Useful linux commands == | ||
'''Checking information''' | |||
*'''lsb_release -a''' to check OS | *'''lsb_release -a''' to check OS | ||
*'''uname -sr''' to check OS kernel | *'''uname -sr''' to check OS kernel | ||
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*'''free –m''' info about used, free and total amount of RAM | *'''free –m''' info about used, free and total amount of RAM | ||
*'''hdparm –i''' info about sata devices | *'''hdparm –i''' info about sata devices | ||
'''Editing files''' | |||
*cp - copy files and directories | |||
*mv - move or rename files and directories | |||
*rm - remove files and directories | |||
*mkdir - create directories | |||
== NMAP and SSH == | == NMAP and SSH == | ||
Revision as of 12:43, 13 January 2016
Reference page for I600 exam
Useful linux commands
Checking information
- lsb_release -a to check OS
- uname -sr to check OS kernel
- cat /proc/cpuinfo and check processor information.
- arch to check CPU architecture
- cat /proc/meminfo to check memory usage, RAM
- lspci -t -v -nn to enumerate PCI and PCI Express devices
- lsusb and lsusb -t to enumerate USB devices
- fdisk -l to enumerate disks and partitions
- lsblk to enumerate block devices
- xrandr to enumerate display outputs
- cat /proc/asound/cards to check which audio devices are available
- dmidecode to see even more information about your computer
- ifconfig -a or ip addr list to list all network interfaces
- iwconfig or iw list to list all wireless network interfaces
- hcitool dev to list bluetooth host controller.
- glxinfo to check 3D rendering capabilities, GPU
- lscpu info about cpu and processing units
- lshw - short info about hardware units, such as cpu, memory, disk, usb controllers, network adapters
- hwinfo –short info about hardware utility stuff
- lspci info about pci buses and devices connected to them
- lsscsi info about sata/scsi devices
- lsusb info about usb controllers and devices
- lsblk block information, harddrive partitions
- df –H info about disk space and partitions that are mounted
- fdisk –l info about partitions
- free –m info about used, free and total amount of RAM
- hdparm –i info about sata devices
Editing files
- cp - copy files and directories
- mv - move or rename files and directories
- rm - remove files and directories
- mkdir - create directories
NMAP and SSH
NMAP
- Find my ip: ifconfig
- Scan networks: nmap <ip>
- Find live hosts: nmap -sP 192.168.0.*
- Scan specific port: nmap -p 80 server2.tecmint.com
- Scan a single ip address: nmap 192.168.1.1
- Scan a host name: nmap server1.cyberciti.biz
- Scan a host name with more info : nmap -v server1.cyberciti.biz
- Scan with disabled port scan: nmap -sn 192.168.2.1/24
- Read and scan from txt file: nmap -iL /tmp/test.txt
- Create the txt file to read from: cat > /tmp/test.txt
SSH
- Connect: ssh collie.stanford.edu
- Log-in: ssh jhawkins@collie.stanford.edu
