NAS

• TrueNAS - Login PS1 Prompt with Warning and Bash Colors
• TrueNAS - SCALE Create a local Backup and Send to S3 Buckets

TrueNAS - Login PS1 Prompt with Warning and Bash Colors

Change the colors of the shell do the following steps:

Step 1:

Change the shell on the user in Credentials/Users and then Edit the user you are using to log in and change the following.

Step 2:

Add the following entries to create the default files for any login

Creating Aliases

sudo cat > /etc/profile.d/custom-aliases.sh << EOF
# Common interactive aliases for all users

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'
alias vi='vim'
alias tailf='tail -f'
EOF

Server Warning

sudo tee /etc/profile.d/custom-prod-warning.sh > /dev/null << 'EOF'
# /etc/profile.d/custom-prod-warning.sh
# Production warning banner – only for real interactive logins

# 1. Exit immediately if this is not an interactive shell
[[ $- != *i* ]] && return

# 2. Exit if we don't have a real terminal
[[ -t 0 && -t 1 ]] || return

# 3. Exit if SSH is running a forced command (rsync, scp, ansible, etc.)
#    OpenSSH sets SSH_ORIGINAL_COMMAND in these cases
[[ -n "${SSH_ORIGINAL_COMMAND:-}" ]] && return

# --- Safe to show the banner from here ---

RED='\033[1;31m'
YELLOW='\033[1;33m'
NC='\033[0m'

echo
if command -v figlet >/dev/null 2>&1; then
    figlet -f big "PRODUCTION" | while IFS= read -r line; do
        printf '%b%s%b\n' "$RED" "$line" "$NC"
    done
    figlet -f big "SERVER" | while IFS= read -r line; do
        printf '%b%s%b\n' "$RED" "$line" "$NC"
    done
else
    echo -e "${RED}***** PRODUCTION SERVER!! *****${NC}"
fi

echo
echo -e "${YELLOW} *** EXTREME CAUTION REQUIRED ***${NC}"
echo -e "${RED}This is a LIVE PRODUCTION system.${NC}"
echo -e "${RED}Unauthorized access is strictly prohibited.${NC}"
echo -e "${RED}All activity is logged and monitored.${NC}"
echo -e "${YELLOW}Think twice before running commands!${NC}"
echo
EOF

Creating Colorful Prompts

sudo tee /etc/profile.d/custom-prompt-and-colors.sh > /dev/null << 'EOF'
# Custom LS_COLORS and improved multi-line colored prompt

# Vibrant LS_COLORS (directories bold blue on gray, etc.)
LS_COLORS='rs=0:di=01;44:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:'
export LS_COLORS

# Build a combined OS_NAME: Debian base + TrueNAS SCALE build
if [ -f /etc/os-release ]; then
    . /etc/os-release
    OS_NAME="${PRETTY_NAME}"
fi
if [ -f /etc/version ]; then
        TRUENAS_VER="TrueNAS SCALE ($(cat /etc/version 2>/dev/null))"
        OS_NAME="${OS_NAME} / ${TRUENAS_VER}"
fi
export OS_NAME


# Only set up the fancy colored prompt in real interactive terminals
if [[ $- == *i* ]] && [[ -t 0 && -t 1 ]] && [[ -z "${SSH_ORIGINAL_COMMAND:-}" ]]; then

    # Color and style variables
    RESET=$(tput sgr0)
    BOLD=$(tput bold)
    BG_GRAY=$(tput setab 8)
    FG_RED=$(tput setaf 1)
    FG_MAGENTA=$(tput setaf 5)
    FG_GREEN=$(tput setaf 2)
    FG_CYAN=$(tput setaf 6)

    # Multi-line prompt – all non-printing sequences wrapped in \[ \]
    PS1="\n"
    PS1+="\[${BOLD}${BG_GRAY}${FG_RED}\]\u"
    PS1+="\[${FG_MAGENTA}\]@"
    PS1+="\[${FG_RED}\]\`hostname\`"
    PS1+="\[${FG_GREEN}\] : \`uname\` : "
    PS1+="\[${FG_CYAN}\]\d \t : \${PLANTID:+\$PLANTID }"
    PS1+="\[${RESET}\]\n"
    PS1+="\[${FG_CYAN}\][\w]"
    PS1+="\[${RESET}${BOLD}\] \\$ \[${RESET}\]"

    export PS1
fi
EOF

Result

TrueNAS - SCALE Create a local Backup and Send to S3 Buckets

To automate backing up your TrueNAS configuration directly to Amazon S3 or any S3-compatible cloud storage, you need to create a local backup script and pair it with a TrueNAS Cloud Sync task

TrueNAS automatically saves daily configuration databases locally to your system dataset, but exporting it safely off-site requires grabbing the full archive (with the secret seed) via a middleware command (midclt).

Step 1: Create a Local Dataset and Script

1. Navigate to Storage > Datasets and click Add Dataset. Name it something distinct like system-backups.
2. Open a shell or connection to your TrueNAS system. Create a script named backup_config.sh inside that dataset folder:
   bash

   nano /mnt/YOUR_POOL/system-backups/backup_config.sh

3. Paste the following script, which requests the configuration archive from the TrueNAS API engine (midclt), saves it with a timestamp, and purges backups older than 30 days to avoid clutter:
   bash

   #!/bin/bash
   BACKUP_DIR="/mnt/volume1/system-backups"
   DATE=$(date +%Y%m%d-%H%M%S)
   FILENAME="truenas-config-${DATE}.tar"
   
   # 1. Request the configuration download job from the SCALE API
   JOB_DATA=$(midclt call core.download "config.save" '[{"secretseed": true}]' "${FILENAME}")
   
   # 2. Extract the download path cleanly using jq (returns: /_download/JOB_ID?auth_token=TOKEN)
   DOWNLOAD_PATH=$(echo "$JOB_DATA" | jq -r '.[1]')
   
   # 3. Pull the actual file directly using the exact path provided by the API
   curl -s -k --output "${BACKUP_DIR}/${FILENAME}" "http://127.0.0.1${DOWNLOAD_PATH}"
   
   # 4. Delete backups older than 30 days
   find "${BACKUP_DIR}" -name "truenas-config-*.tar" -type f -mtime +30 -delete
   

4. Make the script executable:
   bash

   chmod +x /mnt/YOUR_POOL/system-backups/backup_config.sh

Step 2: Automate the Script via Cron Job

1. Navigate to System > Advanced Settings >Cron Jobs and click Add.
2. Description: Generate Daily Config Backup Archive
3. Command: /mnt/YOUR_POOL/system-backups/backup_config.sh
4. Run As User: root
5. Schedule: Set it to run daily (e.g., Every day at 02:00 AM).
6. Click Save.

Step 3: Link Your S3 Bucket Credentials

1. Go to Credentials > Backup Credentials > Cloud Credentials and click Add.
2. Name the credential (e.g., AWS-S3-Backup).
3. Under Provider, select Amazon S3 (or generic S3 if using Wasabi, Backblaze B2, or MinIO).
4. Paste your cloud account's Access Key ID and Secret Access Key.
5. Click Verify to confirm the handshake with AWS is successful, then click Save

Step 4: Configure the Offsite S3 Cloud Sync Task

1. Navigate to Data Protection > Cloud Sync Tasks and click Add.
2. Description: Sync Config Backups to S3
3. Direction: Select PUSH (this uploads data to the cloud).
4. Transfer Mode: Select SYNC (mirrors your local folder; automatically handles remote file deletion when files age out locally).
5. Directory/Files: Choose your local path: /mnt/YOUR_POOL/system-backups.
6. Credential: Select the AWS-S3-Backup credential you created in Step 3.
7. Bucket: Select your designated target S3 bucket from the auto-populated drop-down menu.
8. Schedule: Set this to run daily, at least one hour after the local Cron Job (e.g., Every day at 03:00 AM).
9. Click Save.