LINUX BASIC AND USEFUL COMMANDS
Operating System What's the distribution type? What version? cat /etc/issue cat /etc/*-release cat /etc/lsb-release What's the kernel version? Is it 64-bit? cat /proc/version uname -a uname -mrs rpm -q kernel dmesg | grep Linux ls /boot | grep vmlinuz- What can be learnt from the environmental variables? cat /etc/profile cat /etc/bashrc cat ~/.bash_profile cat ~/.bashrc cat ~/.bash_logout env set Is there a printer? lpstat -a Applications & Services What services are running? Which service has which user privilege? ps aux ps -ef top cat /etc/services Which service(s) are been running by root? Of these services, which are vulnerable ps aux | grep root ps -ef | grep root What applications are installed? What version are they? Are they currently running? ls -alh /usr/bin/ ls -alh /sbin/ dpkg -l rpm -qa ls -alh /var/cache/apt/archivesO ls -alh /var/cache/yum/ Any of the service(s) settings misconfigured? Are any (vulnerable) plugins attached? cat /etc/syslog.conf ca...
