From db6c7829ee8ea9c2b3c00a2286275fb98b441583 Mon Sep 17 00:00:00 2001
From: reachableceo <charles@turnsys.com>
Date: Mon, 10 Aug 2026 14:00:38 -0500
Subject: [PATCH] feat(agents): add Agent Authority policy + access bootstrap
 tooling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add non-negotiable "Agent Authority" section to AGENTS.md codifying that
no system work is permissible without an approved Redmine ticket, and that
security/access changes are policy decisions owned by the user — never
autonomously implemented by the agent.

Also add the access bootstrap toolkit:
- agent-bootstrap.sh: in-guest key + sudo setup (localuser sudo only per policy)
- bootstrap-all.sh: workstation-side push to remaining NO-KEY systems
- access-matrix.sh: full fleet SSH/sudo probe
- probe-ssh.sh, probe-ssh-localuser.sh, probe-ga.sh, pivot-probe.sh,
  ga-push-key.sh: diagnostic scripts used during access audit

Refs [#403]

💘 Generated with Crush

Assisted-by: Crush:glm-5.2
---
 AGENTS.md              | 54 ++++++++++++++++++++++++
 access-matrix.sh       | 38 +++++++++++++++++
 agent-bootstrap.sh     | 59 ++++++++++++++++++++++++++
 bootstrap-all.sh       | 94 ++++++++++++++++++++++++++++++++++++++++++
 ga-push-key.sh         | 44 ++++++++++++++++++++
 pivot-probe.sh         | 38 +++++++++++++++++
 probe-ga.sh            | 32 ++++++++++++++
 probe-ssh-localuser.sh | 54 ++++++++++++++++++++++++
 probe-ssh.sh           | 15 +++++++
 9 files changed, 428 insertions(+)
 create mode 100644 access-matrix.sh
 create mode 100644 agent-bootstrap.sh
 create mode 100644 bootstrap-all.sh
 create mode 100644 ga-push-key.sh
 create mode 100644 pivot-probe.sh
 create mode 100644 probe-ga.sh
 create mode 100644 probe-ssh-localuser.sh
 create mode 100644 probe-ssh.sh

diff --git a/AGENTS.md b/AGENTS.md
index 1c42e11..e868111 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,5 +1,59 @@
 # Agent Guidelines
 
+## Agent Authority (NON-NEGOTIABLE)
+
+**No work is permissible on any system without an approved Redmine ticket.
+There are no exceptions to this rule.**
+
+### Scope of authority
+
+1. **Tickets govern all work.** The agent performs ONLY the work described in
+   the approved Redmine ticket. Anything outside that scope — no matter how
+   small, helpful, or "obvious" — is prohibited.
+
+2. **No autonomous system changes.** The agent does not modify, configure,
+   create, delete, or grant anything on a production system unless it is
+   explicitly directed by an approved ticket. "Production system" means
+   every system in the fleet — there is no "test" exception unless the ticket
+   says so.
+
+3. **Propose, never implement.** If the agent discovers additional work that
+   should be done — a bug, a misconfiguration, a missing dependency, an
+   enhancement — it does NOT implement it. Instead, it creates a Redmine
+   sub-ticket (status Feedback) describing the finding and surfaces it to
+   the user for approval.
+
+4. **Security and access changes require extra scrutiny.** Changes to sudoers,
+   SSH keys, user accounts, firewall rules, authentication policy, file
+   permissions, or any privilege-related configuration are treated as
+   policy decisions, not implementation details. The agent may suggest
+   them but NEVER implements them without explicit user direction in the
+   ticket or a sub-ticket the user has approved.
+
+5. **The user makes policy. The agent implements policy.** The agent does
+   not decide who gets sudo, what keys go where, what services run, or what
+   the access model is. The agent executes the user's decisions, exactly
+   as specified.
+
+6. **When in doubt, ask.** If the ticket is ambiguous, if a task seems to
+   require something not explicitly authorized, or if the agent is unsure
+   whether an action is in scope — STOP and ask the user via the ticket
+   or directly. Asking is always acceptable. Overstepping is never
+   acceptable.
+
+### What this means in practice
+
+- Discovered a typo in a config during approved work? **Finish the approved
+  work. Create a sub-ticket for the typo. Do not fix it inline.**
+- Think a system should also have localuser sudo configured? **Do not add
+  it. Propose it in a sub-ticket.**
+- Need to install a package the ticket didn't mention? **Ask first.**
+- Found a security issue? **Create a ticket immediately with full details.
+  Do not remediate without approval.**
+
+This environment operates in ITAR/CMMC/TS/SCI space. Every action must be
+traceable to an approved ticket. There is no "I thought it would help."
+
 ## Quick Start
 
 **You are an AI agent working on this project. Your first actions, in order:**
diff --git a/access-matrix.sh b/access-matrix.sh
new file mode 100644
index 0000000..5b59199
--- /dev/null
+++ b/access-matrix.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/bash
+# access-matrix.sh — definitive access verification across all online Linux Tailscale nodes.
+# For each node: try root SSH, then localuser SSH; report access level.
+# Routes through remote.sh (the only allowed ssh path).
+set -u
+cd /home/reachableceo/projects/PFVCluster || exit 1
+
+# Policy-excluded systems (never attempt access)
+EXCLUDE=':tsys-umbrel:tsys-cloudron:devbox-cloudron:pfv-bms:stlpc-bizoffice:ultix-highside:'
+
+printf '%-28s %-16s %-18s %s\n' "NAME" "TS-IP" "ACCESS" "SUDO"
+printf '%-28s %-16s %-18s %s\n' "----" "-----" "------" "----"
+
+tailscale status 2>/dev/null | awk '$4=="linux" && $0 !~ /offline/ {print $2, $1}' | sort | while read -r name ip; do
+  [ -n "$name" ] || continue
+  case "$EXCLUDE" in *":$name:"*) printf '%-28s %-16s %-18s\n' "$name" "$ip" "EXCLUDED"; continue;; esac
+
+  # Try root
+  rout=$(VM_IP="$ip" VM_USER="root" bash tests/remote.sh vm 'echo OK; id -un' </dev/null 2>&1 | tr '\n' '/')
+  case "$rout" in
+    *OK/root*) sudo=$(VM_IP="$ip" VM_USER="root" bash tests/remote.sh vm 'sudo -n true 2>/dev/null && echo SUDOOK || echo SUDONO' </dev/null 2>&1 | tr -d '\n')
+                printf '%-28s %-16s %-18s %s\n' "$name" "$ip" "root-SSH" "${sudo:-?}"; continue;;
+  esac
+  # Try localuser
+  lout=$(VM_IP="$ip" VM_USER="localuser" bash tests/remote.sh vm 'echo OK; id -un' </dev/null 2>&1 | tr '\n' '/')
+  case "$lout" in
+    *OK/localuser*) sudo=$(VM_IP="$ip" VM_USER="localuser" bash tests/remote.sh vm 'sudo -n true 2>/dev/null && echo SUDOOK || echo SUDONO' </dev/null 2>&1 | tr -d '\n')
+                     printf '%-28s %-16s %-18s %s\n' "$name" "$ip" "localuser-SSH" "${sudo:-?}"; continue;;
+  esac
+  # Neither — classify the failure
+  case "$rout" in
+    *Connection\ refused*) printf '%-28s %-16s %-18s\n' "$name" "$ip" "NO-SSH(port22)";;
+    *keyboard-interactive*) printf '%-28s %-16s %-18s\n' "$name" "$ip" "2FA-blocked";;
+    *Permission\ denied*) printf '%-28s %-16s %-18s\n' "$name" "$ip" "NO-KEY";;
+    *No\ route*) printf '%-28s %-16s %-18s\n' "$name" "$ip" "UNREACHABLE";;
+    *) printf '%-28s %-16s %-18s\n' "$name" "$ip" "NO-KEY";;
+  esac
+done
diff --git a/agent-bootstrap.sh b/agent-bootstrap.sh
new file mode 100644
index 0000000..cf4e5e9
--- /dev/null
+++ b/agent-bootstrap.sh
@@ -0,0 +1,59 @@
+#!/bin/sh
+# agent-bootstrap.sh
+#
+# Run INSIDE a guest (via noVNC console login, or any root shell) to bring the
+# system fully under agent management in one shot:
+#   1. install + enable qemu-guest-agent  (so Proxmox can reach the guest)
+#   2. push the agent SSH key to root + localuser
+#   3. grant localuser passwordless sudo
+#
+# After this runs once, the agent has SSH+sudo immediately. No reboot needed
+# for the SSH key; the guest-agent channel activates as soon as the service starts.
+#
+# Usage (from a root shell in the guest):
+#   bash agent-bootstrap.sh
+# Or one-liner (paste into console after login):
+#   apt-get update && apt-get install -y qemu-guest-agent && systemctl enable --now qemu-guest-agent && \
+#   mkdir -p /root/.ssh /home/localuser/.ssh && chmod 700 /root/.ssh /home/localuser/.ssh && \
+#   KEY='ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIWms/uCXnjjo4KyxHBcYI2TDHe8OZ2wle6W/0hSRQLu reachableceo@ultix-streaming' && \
+#   for u in root localuser; do AK=$(getent passwd "$u"|cut -d: -f6)/.ssh/authorized_keys; touch "$AK"; chmod 600 "$AK"; grep -qF "$KEY" "$AK" || echo "$KEY" >> "$AK"; chown "$u": "$AK"; done && \
+#   id localuser >/dev/null 2>&1 && { echo 'localuser ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/010-agent; chmod 440 /etc/sudoers.d/010-agent; }; \
+#   echo BOOTSTRAP-DONE
+
+set -eu
+
+KEY='ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIWms/uCXnjjo4KyxHBcYI2TDHe8OZ2wle6W/0hSRQLu reachableceo@ultix-streaming'
+
+# 1. guest-agent
+if ! command -v qemu-ga >/dev/null 2>&1; then
+  if command -v apt-get >/dev/null 2>&1; then
+    apt-get update
+    DEBIAN_FRONTEND=noninteractive apt-get install -y qemu-guest-agent
+  elif command -v dnf >/dev/null 2>&1; then
+    dnf install -y qemu-guest-agent
+  elif command -v yum >/dev/null 2>&1; then
+    yum install -y qemu-guest-agent
+  else
+    echo "WARN: no supported package manager; skipping agent install" >&2
+  fi
+fi
+systemctl enable --now qemu-guest-agent 2>/dev/null || \
+  systemctl enable --now qemu-ga 2>/dev/null || true
+
+# 2. SSH key for root + all unprivileged agents (localuser, labuser)
+for u in root localuser labuser; do
+  if ! getent passwd "$u" >/dev/null 2>&1; then continue; fi
+  H=$(getent passwd "$u" | cut -d: -f6)
+  mkdir -p "$H/.ssh"; chmod 700 "$H/.ssh"
+  AK="$H/.ssh/authorized_keys"; touch "$AK"; chmod 600 "$AK"
+  grep -qF "$KEY" "$AK" || echo "$KEY" >> "$AK"
+  chown -R "$u": "$H/.ssh"
+done
+
+# 3. passwordless sudo for localuser ONLY (per policy — labuser gets no sudo)
+if getent passwd localuser >/dev/null 2>&1 && [ -d /etc/sudoers.d ]; then
+  echo 'localuser ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/010-agent
+  chmod 440 /etc/sudoers.d/010-agent
+fi
+
+echo BOOTSTRAP-DONE
diff --git a/bootstrap-all.sh b/bootstrap-all.sh
new file mode 100644
index 0000000..75fc562
--- /dev/null
+++ b/bootstrap-all.sh
@@ -0,0 +1,94 @@
+#!/usr/bin/bash
+# bootstrap-all.sh — push agent key + sudo to every remaining NO-KEY system.
+#
+# Three groups (user determined by system type):
+#   1. Proxmox appliances (mailgw) + Kali → root
+#   2. stlpc-* systems                   → labuser
+#   3. Everything else                    → localuser
+#
+# You'll enter passwords interactively. Idempotent: safe to re-run.
+set -u
+cd "$(dirname "$0")" || exit 1
+
+SCRIPT=agent-bootstrap.sh
+SSH_OPTS=(-o StrictHostKeyChecking=accept-new -o ConnectTimeout=10)
+
+ok=0; fail=0; faillist=""
+
+run_as_root() {
+  local name="$1" ip="$2"
+  echo "========================================"
+  echo "  $name ($ip) — root"
+  echo "========================================"
+  if scp "${SSH_OPTS[@]}" "$SCRIPT" "root@${ip}:/tmp/" 2>/dev/null; then
+    if ssh "${SSH_OPTS[@]}" "root@${ip}" "bash /tmp/$SCRIPT"; then
+      echo "  -> $name DONE"; ok=$((ok+1))
+    else
+      echo "  -> $name FAILED (script error)"; fail=$((fail+1)); faillist="$faillist $name"
+    fi
+  else
+    echo "  -> $name FAILED (root SSH/password)"; fail=$((fail+1)); faillist="$faillist $name"
+  fi
+  echo
+}
+
+run_as_user() {
+  local name="$1" ip="$2" user="$3"
+  echo "========================================"
+  echo "  $name ($ip) — $user"
+  echo "========================================"
+  if scp "${SSH_OPTS[@]}" "$SCRIPT" "${user}@${ip}:/tmp/" 2>/dev/null; then
+    if ssh "${SSH_OPTS[@]}" "${user}@${ip}" 'su -c "bash /tmp/'"$SCRIPT"'"'; then
+      echo "  -> $name DONE"; ok=$((ok+1))
+    else
+      echo "  -> $name FAILED (su to root)"; fail=$((fail+1)); faillist="$faillist $name"
+    fi
+  else
+    echo "  -> $name FAILED (${user} SSH/password)"; fail=$((fail+1)); faillist="$faillist $name"
+  fi
+  echo
+}
+
+# === Group 1: root (Proxmox appliances + Kali) ===
+echo "########################################"
+echo "# Group 1: root (Proxmox appliances + Kali)"
+echo "########################################"
+echo
+run_as_root kali-tsys 100.82.30.115
+run_as_root preprod-proxmox-mailgw 100.114.9.49
+run_as_root sectestbed-proxmox-mailgw 100.117.24.21
+
+# === Group 2: labuser (stlpc-*) ===
+echo "########################################"
+echo "# Group 2: labuser (stlpc-*)"
+echo "########################################"
+echo
+run_as_user stlpc-artroom 100.120.77.113 labuser
+run_as_user stlpc-garage 100.72.192.22 labuser
+
+# === Group 3: localuser (everything else) ===
+echo "########################################"
+echo "# Group 3: localuser (standard systems)"
+echo "########################################"
+echo
+run_as_user pfv-jetson-nano-1 100.82.230.119 localuser
+run_as_user pfvsvrpi 100.91.151.113 localuser
+run_as_user preprod-cloudron 100.95.69.89 localuser
+run_as_user preprod-hfnoc-uisp 100.77.14.7 localuser
+run_as_user preprod-siem 100.98.162.14 localuser
+run_as_user sectestbed-cloudron 100.97.140.105 localuser
+run_as_user sectestbed-siem 100.108.121.18 localuser
+run_as_user subopi3 100.93.17.77 localuser
+run_as_user subopi-dev-3 100.64.231.65 localuser
+run_as_user subopi-dev-4 100.65.224.85 localuser
+run_as_user tsys-siem 100.72.35.113 localuser
+run_as_user ultix-field 100.115.233.124 localuser
+
+echo "========================================"
+echo "Summary: $ok done, $fail failed"
+[ -n "$faillist" ] && echo "Failed:$faillist"
+echo "========================================"
+echo "Still 2FA-blocked (need policy decision):"
+echo "  sectestbed-sandbox, tsys-ucs-01, tsys-ucs-02"
+echo "========================================"
+echo "Tell the agent to re-run access-matrix.sh to verify."
diff --git a/ga-push-key.sh b/ga-push-key.sh
new file mode 100644
index 0000000..2ec8cf2
--- /dev/null
+++ b/ga-push-key.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/bash
+# shellcheck disable=SC2016  # intentional: $vars expand in-guest, not locally
+# ga-push-key.sh — push agent SSH key + NOPASSWD sudo to all GA-OK VMs via guest-agent.
+# Runs from the workstation, routing each call through remote.sh vm-guest on the VM's host.
+set -u
+cd /home/reachableceo/projects/PFVCluster || exit 1
+
+KEY='ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIWms/uCXnjjo4KyxHBcYI2TDHe8OZ2wle6W/0hSRQLu reachableceo@ultix-streaming'
+
+INGUEST='for u in root localuser; do getent passwd "$u" >/dev/null || continue; H=$(getent passwd "$u"|cut -d: -f6); mkdir -p "$H/.ssh"; chmod 700 "$H/.ssh"; AK="$H/.ssh/authorized_keys"; touch "$AK"; chmod 600 "$AK"; grep -qF "'"${KEY}"'" "$AK" || echo "'"${KEY}"'" >> "$AK"; chown -R "$u": "$H/.ssh"; done; [ -d /etc/sudoers.d ] && { echo "localuser ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/010-agent; chmod 440 /etc/sudoers.d/010-agent; }; echo PUSHDONE $(hostname)'
+
+# host:vmid list of GA-OK VMs (excluding pfv-bms=100 policy-excluded, ultix-streaming=5111 self)
+pairs="
+pfv-tsys1:101
+pfv-tsys1:102
+pfv-tsys1:104
+pfv-tsys3:313
+pfv-tsys5:500
+pfv-tsys5:5000
+pfv-tsys5:5105
+pfv-tsys5:5106
+pfv-tsys5:5107
+pfv-tsys5:5108
+pfv-tsys5:5109
+pfv-tsys5:5112
+pfv-tsys5:51012
+pfv-tsys5:51013
+pfv-tsys5:53100
+pfv-tsys5:53102
+pfv-tsys6:600
+pfv-tsys6:601
+pfv-tsys6:602
+pfv-tsys6:603
+pfv-tsys7:701
+pfv-tsys7:703
+pfv-tsys7:705
+pfv-tsys7:706
+pfv-tsys9:905
+"
+for p in $pairs; do
+  host="${p%%:*}"; vid="${p##*:}"
+  out=$(PROX_HOST="$host" VM_ID="$vid" GUEST_TIMEOUT=120 bash tests/remote.sh vm-guest "$INGUEST" </dev/null 2>&1)
+  printf '%-12s %-6s %s\n' "$host" "$vid" "${out//$'\n'/ | }"
+done
diff --git a/pivot-probe.sh b/pivot-probe.sh
new file mode 100644
index 0000000..0eae2c1
--- /dev/null
+++ b/pivot-probe.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+# pivot-probe.sh — runs ON a Proxmox host (tsys5).
+# Tests whether THIS host's root key grants SSH (root/localuser) into the
+# GA-NO / no-SSH VMs over Tailscale. Output: "ip name user PIVOT-OK|FAIL reason"
+IPS="
+100.125.183.68:tsys-proxmox-datacenter:105
+100.109.13.110:tsys-ucs-01:108
+100.114.81.107:pfv-proxmox-backup-server:400
+100.77.14.7:preprod-hfnoc-uisp:515
+100.108.121.18:sectestbed-siem:5101
+100.80.72.71:sectestbed-proxmox-pve:5102
+100.94.1.34:sectestbed-proxmox-datacenter:5103
+100.127.238.29:sectestbed-proxmox-pbs:5104
+100.97.140.105:sectestbed-cloudron:51011
+100.117.24.21:sectestbed-proxmox-mailgw:51014
+100.113.245.124:sectestbed-ca:51015
+100.86.176.105:sectestbed-voip:51016
+100.98.162.14:preprod-siem:53101
+100.114.9.49:preprod-proxmox-mailgw:53103
+100.94.119.5:preprod-ca:53104
+100.101.250.10:preprod-proxmox-datacenter:53105
+100.79.52.34:preprod-librenms:53106
+100.109.99.109:preprod-voip:53107
+100.95.69.89:preprod-cloudron:53108
+100.94.188.89:hfnoc-uisp:702
+100.72.35.113:tsys-siem:707
+100.82.30.115:kali-tsys:708
+"
+for line in $IPS; do
+  ip="${line%%:*}"; rest="${line#*:}"; name="${rest%%:*}"; vmid="${rest##*:}"
+  if ssh -o BatchMode=yes -o StrictHostKeyChecking=accept-new -o ConnectTimeout=6 "root@${ip}" 'true' >/dev/null 2>&1; then
+    printf '%s\t%s\t%s\troot\tPIVOT-OK\n' "$ip" "$name" "$vmid"
+  elif ssh -o BatchMode=yes -o StrictHostKeyChecking=accept-new -o ConnectTimeout=6 "localuser@${ip}" 'true' >/dev/null 2>&1; then
+    printf '%s\t%s\t%s\tlocaluser\tPIVOT-OK\n' "$ip" "$name" "$vmid"
+  else
+    printf '%s\t%s\t%s\t-\tPIVOT-FAIL\n' "$ip" "$name" "$vmid"
+  fi
+done
diff --git a/probe-ga.sh b/probe-ga.sh
new file mode 100644
index 0000000..915c074
--- /dev/null
+++ b/probe-ga.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+# Fleet probe: for each running VM, report guest-agent status + primary IP.
+# Run on a Proxmox host. Output: "VMID NAME GA-STATUS IP(s)"
+set -u
+qm list 2>/dev/null | awk 'NR>1 && $3=="running" {print $1, $2}' | while read -r vmid name; do
+  [ -n "$vmid" ] || continue
+  if timeout 10 qm agent "$vmid" ping >/dev/null 2>&1; then
+    gastatus="GA-OK"
+    ips=$(timeout 10 qm agent "$vmid" network-get-interfaces 2>/dev/null \
+          | python3 -c '
+import sys, json
+try:
+    data = json.load(sys.stdin)
+except Exception:
+    sys.exit(0)
+seen = []
+for iface in data:
+    ifname = iface.get("name","")
+    if ifname == "lo": continue
+    for a in iface.get("ip-addresses", []):
+        ip = a.get("ip-address","")
+        if ":" in ip: continue
+        if ip.startswith("127."): continue
+        seen.append(ip)
+print(",".join(seen))
+' 2>/dev/null)
+  else
+    gastatus="GA-NO"
+    ips=""
+  fi
+  printf '%s\t%s\t%s\t%s\n' "$vmid" "$name" "$gastatus" "$ips"
+done
diff --git a/probe-ssh-localuser.sh b/probe-ssh-localuser.sh
new file mode 100644
index 0000000..03a61f4
--- /dev/null
+++ b/probe-ssh-localuser.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/bash
+# Test SSH (localuser) over Tailscale for the ROOT-FAIL nodes.
+# Format: "tsname tailscale_ip"
+set -u
+cd /home/reachableceo/projects/PFVCluster || exit 1
+# ROOT-FAIL linux nodes (from probe-ssh pass 1), excluding policy-excluded:
+#   tsys-umbrel, tsys-cloudron, devbox-cloudron, pfv-bms (api-only)
+nodes="
+hfnoc-uisp 100.94.188.89
+netbird 100.123.45.23
+pfv-jetson-nano-1 100.82.230.119
+pfv-netinfra-01 100.70.181.72
+pfv-netinfra-02 100.71.171.20
+pfv-proxmox-backup-server 100.114.81.107
+pfvsvrpi 100.91.151.113
+preprod-ca 100.94.119.5
+preprod-cloudron 100.95.69.89
+preprod-hfnoc-uisp 100.77.14.7
+preprod-librenms 100.79.52.34
+preprod-proxmox-datacenter 100.101.250.10
+preprod-proxmox-mailgw 100.114.9.49
+preprod-siem 100.98.162.14
+preprod-voip 100.109.99.109
+sectestbed-ca 100.113.245.124
+sectestbed-cloudron 100.97.140.105
+sectestbed-proxmox-datacenter 100.94.1.34
+sectestbed-proxmox-mailgw 100.117.24.21
+sectestbed-proxmox-pbs 100.127.238.29
+sectestbed-proxmox-pve 100.80.72.71
+sectestbed-sandbox 100.64.20.60
+sectestbed-siem 100.108.121.18
+sectestbed-voip 100.86.176.105
+stlpc-artroom 100.120.77.113
+stlpc-garage 100.72.192.22
+subopi-dev-3 100.64.231.65
+subopi-dev-4 100.65.224.85
+subopi3 100.93.17.77
+tsys-proxmox-datacenter 100.125.183.68
+tsys-siem 100.72.35.113
+tsys-ucs-01 100.109.13.110
+tsys-ucs-02 100.68.10.17
+tsys-voip 100.83.126.67
+ultix-field 100.115.233.124
+"
+echo "$nodes" | while read -r name ip; do
+  [ -n "$name" ] || continue
+  res=$(VM_IP="$ip" VM_USER="localuser" bash tests/remote.sh vm \
+        'echo SSHOK; id -un; (sudo -n true 2>/dev/null && echo SUDOOK || echo SUDONO)' </dev/null 2>&1 \
+        | tr '\n' '/' )
+  case "$res" in
+    *SSHOK*) printf '%-28s %-16s LOCALUSER-OK   %s\n' "$name" "$ip" "$res" ;;
+    *)       printf '%-28s %-16s LOCALUSER-FAIL  %s\n' "$name" "$ip" "${res##*/}" ;;
+  esac
+done
diff --git a/probe-ssh.sh b/probe-ssh.sh
new file mode 100644
index 0000000..dbf5d78
--- /dev/null
+++ b/probe-ssh.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/bash
+# Test SSH (root) over Tailscale to every online Linux node.
+# Routes through remote.sh (the only allowed ssh path). Concise one-line output.
+set -u
+cd /home/reachableceo/projects/PFVCluster || exit 1
+tailscale status 2>/dev/null | awk '$4=="linux" && $0 !~ /offline/ {print $1, $2}' | while read -r ip name; do
+  [ -n "$ip" ] || continue
+  res=$(VM_IP="$ip" VM_USER="root" bash tests/remote.sh vm \
+        'echo SSHOK; id -un; (sudo -n true 2>/dev/null && echo SUDOOK || echo SUDONO)' </dev/null 2>&1 \
+        | tr '\n' '/' )
+  case "$res" in
+    *SSHOK*) printf '%-28s %-16s ROOT-OK   %s\n' "$name" "$ip" "$res" ;;
+    *)       printf '%-28s %-16s ROOT-FAIL  %s\n' "$name" "$ip" "${res#/}" ;;
+  esac
+done