Setting up Dev Env in linux

Posted on October 2, 2012

Tags: hackhard

1 While in disk installation

Select SSH server
Deselect any desktop environment
Webserver is just apache web server, not useful

2 While in terminal of newly installed OS

2.1 SSH into root

We cannot SSH immediately into root

login as root
go to /etc/ssh/sshd_config
Change PermitRootLogin without-password to PermitRootLogin yes

#"PermitRootLogin prohibit-password" => "PermitRootLogin yes"

sudo service ssh restart

2.2 Give sudo command to user

RHEL makes 2 accounts, the root and your default user which is named rhel.
by default rhel has no sudo privilege so first login to root then give sudo to rhel.

2.2.1 Give sudo access

su -
apt install sudo
usermod -aG sudo debian

If the above doesnt work try below

su -
nano /etc/sudoers

under root ALL=(ALL) ALL
add rhel ALL=(ALL) ALL

3 Theory and Network

NetworkManager is the core hub
nmcli is used to talk with NetworkManager
Even if you connect ethernet physically, you still need to set-up the config connection to get internet

nmcli con add con-name example ifname eno1 type ethernet ip4 192.168.1.86/24 gw4 192.168.1.1 nmcli con mod example ipv4.dns “8.8.8.8” nmcli -p con show example nmcli connection up example

nmcli connection delete example

4 Updating

RHEL requires we “register” our system with our account
subscription-manager register --username <username> --password <password> --auto-attach
go to https://www.redhat.com/wapps/tnc and click agree
subscription-manager attach --auto
Cant update with dnf due to subscription error caused by NTP
go to “192.168.1.86:9090” >> Services >> NTP client/server chronyd.service , Enable

4.1 package update

note dnf is called “dandified yum” aka better yum
instead of apt-get, use dnf
Search for package using dnf search bleh, dnf search --all bleh
dnf list --installed
dnf update

5 Mounting drives and transferring files

lsblk -which show drives and partitions
sudo mount /dev/sdc2 /mnt

6 Setup

6.1 Code-server

Remember to change the configs following https://userjy.github.io/posts/2021-11-10-CodeServer.html

6.2 firewalld

code-server wont work because of firewall
sudo firewall-cmd --set-default-zone trusted

7 Install zshrc

apt-get install zsh

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

8 bashrc zshrc

#lean prover
export PATH="$PATH:$HOME/.elan/bin"
export NEXT_TELEMETRY_DISABLED=1

source ~/.zprofile
alias kubectl="minikube kubectl --"
export SAM_CLI_TELEMETRY=0

# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup="$('/home/kali/miniconda3/bin/conda' 'shell.zsh' 'hook' 2> /dev/null)"
if [ $? -eq 0 ]; then
    eval "$__conda_setup"
else
    if [ -f "/home/kali/miniconda3/etc/profile.d/conda.sh" ]; then
        . "/home/kali/miniconda3/etc/profile.d/conda.sh"
    else
        export PATH="/home/kali/miniconda3/bin:$PATH"
    fi
fi
unset __conda_setup
# <<< conda initialize <<<

export PATH="$PATH:/home/kali/.local/bin"
export PATH="$HOME/.elan/bin:$PATH"

9 install node

Install node via installing nvm

wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.2/install.sh | bash
nvm install node

10 Install docker

sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
sudo dnf remove runc
sudo dnf install docker-ce
sudo dnf install docker-compose-plugin
sudo systemctl enable docker
sudo groupadd docker
sudo usermod -aG docker $USER
sudo chmod 666 /var/run/docker.sock

11 Install golang

Get linux download link from golang website

sudo rm -rf /usr/local/go
cd /usr/local
sudo wget https://go.dev/dl/go1.19.3.linux-amd64.tar.gz
tar -xvzf https://go.dev/dl/go1.19.3.linux-amd64.tar.gz
sudo rm -rf https://go.dev/dl/go1.19.3.linux-amd64.tar.gz

either in .zshrc or .bashrc, or .zprofile .profile add the lines

export GOBIN=/usr/local/go/bin
export PATH=$PATH:$GOBIN
export GOPATH=$(go env GOPATH)
export PATH=$PATH:$GOPATH

12 Wolfram

follow the instructions
also chmod -R 777 the wolfram engine

sudo dnf install alsa-lib

13 TroubleShooting

13.1 Failure in apt update

vi /etc/apt/sources.list

14 Install ghcup

#for debian
sudo apt-get install libnuma-dev
#for redhat
dnf install numactl

ghcup tui
ghcup set ghc 8.10.7