vimdiff
do Gets changes from another window dp Put changes from current to another window ]c Jumps to next change [c Jumps to previous change CTRL …
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OSCP day 3
Locate Finding fileslocate kim.txt Updateupdatedb e.g.locate nc.exe Which See manual for whichman which e.g.which sbd find Manualman find Find recursively find . -name php.ini e.g.find ~/ …
Kali setup for the first time
Setup screen resolution sudo nano /etc/default/grub GRUB_DEFAULT=0GRUB_TIMEOUT=5GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash video=hyperv_fb:1920×1080″GRUB_CMDLINE_LINUX=”” sudo update-grub sudo reboot Setup SSH Check if already …
Grep MAC and IP address using Regular expression
MAC Addressgrep -o -E “([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}” found.txt IP Addressgrep -o -E “([0-9]{1,3}[\.]){3}[0-9]{1,3}” found.txt [\.] looks for a literal period.([0-9]{1,3}[\.]) can find the first octet.{3} three occurrences …
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Configure HTTP Strict Transport Security (HSTS) on Apache2
Enable Apache2 Headers Module Enabling HSTS for Apache2
Tips and tricks to tail -f /var/log/apache2/access.log
Top 10 who Top 10 from access.log with awk Include grep multiple Exclude Exclude multiple strings Exclude and include
View and delete mail queue on Ubuntu server
Display mail queues View message in the Postfix queue Delete queued mail Force process the queue now (immediately send all queued messages)
Common Palo Alto firewall commands for troubleshooting
Common commands System info. Able to find the basic info like the followingIP address, model, serial number, Routing Show NAT ippool ping & traceroute Check …
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Fortigate CLI wan interface
Check current wan interface Allow admin access on wan interface Disable admin access on wan
fail2ban on Ubuntu
Configure my own jail sudo nano /etc/fail2ban/jail.local[mysqld-auth]enabled = truelogpath = /var/log/mysql/query.logfilter = mysqld-authport = 3306backend = %(mysql_backend)s Enable logging for mysql sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf# Be …