wiki.kamaradski.com - cheatsheet

apt

Anonymous (anonymous@undisclosed.example.com) — 2024-06-22T23:26:32+00:00

apt command cheatsheet check apt history for manually installed packages $ zgrep 'Commandline: apt' /var/log/apt/history.log /var/log/apt/history.log.*.gz upgrade all packages $ sudo apt update && sudo apt full-upgrade (=> ubuntu & debian) $ sudo apk update && sudo apk upgrade (=> alpine)

awscli

Anonymous (anonymous@undisclosed.example.com) — 2023-02-13T22:34:13+00:00

awscli command cheatsheet awscli official documentation aws cli-tool create a new credentials profile in .aws $ aws configure --profile prod-core execute a command with a specific profile $ aws --profile prod-core execute a command with a specific profile

certbot

Anonymous (anonymous@undisclosed.example.com) — 2023-02-13T22:33:00+00:00

certbot command cheatsheet Certbot official site install certbot $ sudo apt install certbot install cloudflare dns validation plugin $ pip install cloudflare issue new certificate for a domain, using cloudflare DNS validation certbot certonly \ --agree-tos \ --manual-public-ip-logging-ok \ --renew-by-default \ --dns-cloudflare \ --dns-cloudflare-credentials ~/cloudflare.ini \ -d *.example.com For cloudflare DNS validation to work you need the an API Token in ~/cloudfla…

cloudflared

Anonymous (anonymous@undisclosed.example.com) — 2023-07-24T09:14:49+00:00

cloudflared command cheatsheet official documentation configuration location: `.cloudflared/` folder in your user homefolder allow non-root to operate docker // list all tunnels on this host $ cloudflared tunnel list // get extended information about a tunnel on this host $ cloudflared tunnel info tunnelname // install a tunnel as a service (get exact command from zero-trust UI $ sudo cloudflared service install // status of the tunnel service $ systemc…

docker

Anonymous (anonymous@undisclosed.example.com) — 2023-07-24T09:00:09+00:00

docker command cheatsheet install docker on Debian allow non-root to operate docker Per default, the docker commands can only be run by root, in order to allow another user to fully operate docker you need to make the following changes. // add your user to docker usergroup $ sudo usermod -aG docker yourusername // to make this effective login/logout or start a new terminal session with: $ su yourusername // test-1 (should see the docker usergroup listed here): $ id yourusername // test-2…

genericcli

Anonymous (anonymous@undisclosed.example.com) — 2023-11-12T12:52:07+00:00

generic cli command cheatsheet OS version find debian dist version $ cat /etc/debian_version 11.5 find ubuntu dist version $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.1 LTS Release: 22.04 Codename: jammy

git

Anonymous (anonymous@undisclosed.example.com) — 2023-07-24T08:46:29+00:00

git command cheatsheet unstage files (if you have "git add" the wrong file) git restore --staged some.file revert 1 or more local commits (not yet pushed) $ git reset --soft HEAD~1 Unstaged changes after reset: D somefolder/somefile M somefolder/someother.file

haproxy

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T08:06:37+00:00

haproxy command cheatsheet haproxy official documentation start haproxy in the foreground to see the exact error messages $ haproxy -f /etc/haproxy/haproxy.cfg -db [NOTICE] 300/184912 (7292) : haproxy version is 2.2.9-2+deb11u3 [NOTICE] 300/184912 (7292) : path to executable is /usr/sbin/haproxy [ALERT] 300/184912 (7292) : Starting frontend http-in: cannot bind socket [10.0.0.49:80] [ALERT] 300/184912 (7292) : Starting frontend http-in: cannot bind socket [10.0.0.49:443] [ALERT] 300/184912 …

linux_basic_file_manipulation

Anonymous (anonymous@undisclosed.example.com) — 2023-02-13T23:16:36+00:00

linux basic file manipulation command cheatsheet filesystem navigation # see current folder: $ pwd # change folder forward: $ cd Documents/ # one level $ cd Documents/financereports/ # 2 levels # change folder: $ cd .. #one level $ cd ../../.. # jump 3 levels back $ cd ../Documents # jump 1 level back, and 1 level up again

multipass

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T08:08:59+00:00

multipass command cheatsheet edit disksize $ multipass stop instancename $ multipass get local.instancename.disk 5.0GiB $ multipass set local.instancename.disk=10GiB $ multipass start instancename $ multipass info instancename Name: instancename State: Running IPv4: 192.168.64.3 Release: Ubuntu 22.04.1 LTS Image hash: 4fd777cb9295 (Ubuntu 22.04 LTS) Load: 0.10 0.03 0.01 Disk usage: 3.9G out of 9.5G Memory usage: 152.9M out of 961.9M Mou…

networking

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T08:14:59+00:00

networking command cheatsheet list all ip addresses $ ip a OR $ ifconfig OR $ ipconfig (windows) 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp1s0: mtu 1500 qdisc fq_codel state UP group default…

proxmox

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T08:23:29+00:00

proxmox command cheatsheet containers (LXC) list containers $ pct list VMID Status Lock Name 200 running proxy 201 running adguard 202 running wireguard 203 running unifi

sftp

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T08:42:47+00:00

sftp command cheatsheet login to sftp, using separate keyfile $ sftp -i /home/ubuntu/.ssh/yourprivatekeyfile loginname@ssome.server.com sftp> create list of available files & folders on remote sftp echo ls -alt | sftp someserver > somehost_available_files.txt Connected to someserver.

ssh

Anonymous (anonymous@undisclosed.example.com) — 2023-02-21T12:24:07+00:00

ssh command cheatsheet what are ssh and sshd SSH (Secure Shell) is a network protocol that provides secure communication between two computers, typically a client and a server. It is commonly used to enable remote access and management of a server or other networked device. The SSH protocol encrypts all traffic between the client and the server, making it resistant to eavesdropping, tampering, and other forms of network attacks.

terraform

Anonymous (anonymous@undisclosed.example.com) — 2024-10-21T13:53:26+00:00

terraform command cheatsheet run any terraform command with a specific .aws profile name in your awscli config [prod] aws_access_key_id = abcde1234 aws_secret_access_key = abcde1234 [stage] aws_access_key_id = abcde1234 aws_secret_access_key = abcde1234

ufw

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T10:22:54+00:00

ufw firewall command cheatsheet allow rules $ sudo ufw allow 12345/udp Rules updated Rules updated (v6) $ sudo ufw allow ssh Rules updated Rules updated (v6) ufw enable / disable $ sudo ufw enable Command may disrupt existing ssh connections. Proceed with operation (y|n)? y Firewall is active and enabled on system startup

wireguard

Anonymous (anonymous@undisclosed.example.com) — 2023-02-14T10:37:15+00:00

wireguard command cheatsheet create private & public key files $ wg genkey | tee privatekey | wg pubkey > publickey $ ls total 16 drwx------ 2 root root 4096 Nov 25 22:15 . drwxr-xr-x 65 root root 4096 Nov 25 22:08 .. -rw-r--r-- 1 root root 45 Nov 25 22:15 privatekey -rw-r--r-- 1 root root 45 Nov 25 22:15 publickey You should however limit access to these : $ chmod 600 *key $ ls -al total 16 drwx------ 2 root root 4096 Nov 25 22:15 . drwxr-xr-x 65 root root 4096 Nov 25 22:08 .. -rw…