fix: hacer repo replicable para cualquier persona

- install.sh: pide nombre de dispositivo, usuario, contrasena
  y personaliza smb.conf y mdns-publish.py automaticamente
- install.sh: ejecuta termux-setup-storage si no hay acceso
- install.sh: instala netcat-openbsd (dependencia de ssh scripts)
- install.sh: agrega PATH a .bashrc si falta
- Shebangs portables: #!/usr/bin/env en todos los scripts
- ssh-mdns-proxy: dominio Tailscale y aliases como variables
  con comentarios PERSONALIZAR para el usuario
- ssh-config.example: ejemplo de ~/.ssh/config listo para copiar
- smb.conf: valid users se reemplaza durante instalacion

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Andrés Eduardo García Márquez 2026-03-26 07:04:52 -05:00
parent 66a9b4afbf
commit fb245e20df
6 changed files with 102 additions and 38 deletions

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@ -1,4 +1,4 @@
#!/data/data/com.termux/files/usr/bin/bash
#!/usr/bin/env bash
# Instalador de Samba + mDNS + scripts de red para Termux
# Uso: bash install.sh
set -e
@ -19,49 +19,63 @@ error() { echo -e "${RED}[x]${NC} $1"; exit 1; }
# 1. Verificar Termux
[ -n "$PREFIX" ] || error "No es Termux. Este script solo funciona en Termux."
# 2. Instalar dependencias
# 2. Storage de Android
if [ ! -d "$HOME/storage" ]; then
info "Configurando acceso al almacenamiento Android..."
termux-setup-storage
sleep 3
fi
# 3. Instalar dependencias
info "Instalando paquetes..."
pkg install -y samba python 2>/dev/null
pkg install -y samba python netcat-openbsd 2>/dev/null
pip install -q zeroconf 2>/dev/null
# 3. Crear directorios
# 4. Crear directorios
info "Creando directorios..."
mkdir -p "$SAMBA_DIR"/{private,lock,state,cache}
chmod 0755 "$SAMBA_DIR"/{lock,state,cache}
mkdir -p "$BIN_DIR"
# 4. Copiar config Samba
info "Copiando smb.conf..."
cp "$SCRIPT_DIR/smb.conf" "$SAMBA_DIR/smb.conf"
# 5. Preguntar configuracion personalizada
echo ""
info "=== Configuracion ==="
read -p "Usuario Samba [andres]: " SMB_USER
SMB_USER="${SMB_USER:-andres}"
read -s -p "Contrasena Samba: " SMB_PASS
echo ""
read -p "Nombre del dispositivo en la red [movil]: " DEVICE_NAME
DEVICE_NAME="${DEVICE_NAME:-movil}"
# 5. Copiar scripts de red
# 6. Copiar y personalizar smb.conf
info "Configurando Samba..."
sed "s/valid users = andres/valid users = $SMB_USER/g; \
s/netbios name = MOVIL/netbios name = ${DEVICE_NAME^^}/g" \
"$SCRIPT_DIR/smb.conf" > "$SAMBA_DIR/smb.conf"
# 7. Copiar y personalizar scripts de red
info "Instalando scripts de red..."
for script in mdns-publish.py mdns-resolve ssh-mdns-proxy ssh-fallback; do
cp "$SCRIPT_DIR/scripts/$script" "$BIN_DIR/$script"
chmod +x "$BIN_DIR/$script"
done
# Personalizar hostname en mdns-publish.py
sed -i "s/HOSTNAME = 'movil'/HOSTNAME = '$DEVICE_NAME'/" "$BIN_DIR/mdns-publish.py"
info " mdns-publish.py - Publica SSH + SMB via mDNS"
info " mdns-resolve - Resuelve hostnames .local"
info " ssh-mdns-proxy - ProxyCommand SSH con mDNS + fallback"
info " ssh-fallback - ProxyCommand SSH Tailscale + LAN"
# 6. Crear usuario Samba
info "Configurando usuario Samba..."
read -p "Usuario Samba [andres]: " SMB_USER
SMB_USER="${SMB_USER:-andres}"
read -s -p "Contrasena Samba: " SMB_PASS
echo ""
# 8. Crear usuario Samba
info "Creando usuario Samba '$SMB_USER'..."
printf '%s\n%s\n' "$SMB_PASS" "$SMB_PASS" | \
smbpasswd -L -s -c "$SAMBA_DIR/smb.conf" -a "$SMB_USER" 2>/dev/null || \
printf '%s\n%s\n' "$SMB_PASS" "$SMB_PASS" | \
smbpasswd -L -s -c "$SAMBA_DIR/smb.conf" "$SMB_USER"
# 7. Verificar storage
if [ ! -d "/storage/emulated/0" ]; then
warn "Storage no accesible. Ejecuta: termux-setup-storage"
fi
# 8. Agregar a .bashrc si no existe
# 9. Agregar a .bashrc si no existe
if ! grep -q "smbd" "$HOME/.bashrc" 2>/dev/null; then
info "Agregando autostart a .bashrc..."
cat "$SCRIPT_DIR/bashrc-snippet.sh" >> "$HOME/.bashrc"
@ -69,13 +83,16 @@ else
warn "Autostart ya existe en .bashrc, no se modifica"
fi
# 9. Verificar PATH
# 10. Verificar PATH
if ! echo "$PATH" | grep -q "$BIN_DIR"; then
warn "Agrega esto a tu .bashrc si no esta:"
echo " export PATH=\"\$HOME/.local/bin:\$PATH\""
if ! grep -q '.local/bin' "$HOME/.bashrc" 2>/dev/null; then
echo 'export PATH="$HOME/.local/bin:$PATH"' >> "$HOME/.bashrc"
info "PATH actualizado en .bashrc"
fi
export PATH="$BIN_DIR:$PATH"
fi
# 10. Iniciar servicios
# 11. Iniciar servicios
info "Iniciando Samba..."
pkill smbd 2>/dev/null || true
sleep 1
@ -87,17 +104,21 @@ sleep 1
nohup python "$BIN_DIR/mdns-publish.py" > /dev/null 2>&1 &
disown
# 11. Verificar
# 12. Verificar
sleep 2
if pgrep -x smbd > /dev/null && pgrep -f mdns-publish > /dev/null; then
LOCAL_IP=$(python -c "import socket; s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM); s.connect(('8.8.8.8',80)); print(s.getsockname()[0]); s.close()" 2>/dev/null || echo "???")
info "Todo corriendo."
echo ""
echo " Nombre en red: movil"
echo " Nombre en red: $DEVICE_NAME"
echo " Puerto: 4450"
echo " Usuario: $SMB_USER"
echo " IP actual: $LOCAL_IP"
echo ""
echo " Desde Linux: smb://movil.local:4450/"
echo " Desde Windows: \\\\IP:4450\\"
echo " Desde Linux: smb://${DEVICE_NAME}.local:4450/"
echo " Desde Windows: \\\\${LOCAL_IP}:4450\\"
echo ""
echo " Para SSH inteligente, copia ssh-config.example a ~/.ssh/config"
echo ""
else
error "Algo fallo. Revisa: smb-status / mdns-status"

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@ -1,4 +1,4 @@
#!/data/data/com.termux/files/usr/bin/python
#!/usr/bin/env python3
"""Publica servicios via mDNS/Zeroconf: SSH + Samba"""
import socket
import signal

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@ -1,4 +1,4 @@
#!/data/data/com.termux/files/usr/bin/python3
#!/usr/bin/env python3
"""
Resuelve hostname.local via mDNS multicast.
Uso: mdns-resolve <hostname.local>

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@ -1,4 +1,4 @@
#!/data/data/com.termux/files/usr/bin/bash
#!/usr/bin/env bash
#
# ssh-fallback: Proxy para SSH con fallback automático
# Usado como ProxyCommand en ~/.ssh/config

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@ -1,26 +1,37 @@
#\!/data/data/com.termux/files/usr/bin/bash
#!/usr/bin/env bash
# ssh-mdns-proxy: Resolve .local via mDNS with fallbacks, then connect
# Usado como ProxyCommand en ~/.ssh/config
#
# PERSONALIZAR:
# - ALIASES: agregar tus hosts con nombres cortos
# - TS_DOMAIN: cambiar a tu dominio Tailscale (ver: tailscale status)
# - Si no usas Tailscale, el fallback simplemente se salta
HOST="$1"
PORT="${2:-22}"
CACHE="$HOME/.ssh/mdns-cache"
QUERY="${HOST%.local}"
# Alias mapping (short name → mDNS hostname)
# --- PERSONALIZAR: aliases de tus equipos ---
declare -A ALIASES=(
[dell]="dell-latitude3400"
[lenovo]="lenovo-ideapad"
)
# --- PERSONALIZAR: dominio Tailscale ---
TS_DOMAIN="tailb0bb74.ts.net"
[[ -n "${ALIASES[$QUERY]}" ]] && QUERY="${ALIASES[$QUERY]}"
# 1. mDNS resolution
# 1. mDNS resolution (red local)
IP=$("$HOME/.local/bin/mdns-resolve" "${QUERY}.local" 2 2>/dev/null)
# 2. Fallback: Tailscale DNS
# 2. Fallback: Tailscale DNS (fuera de LAN)
if [[ -z "$IP" ]]; then
IP=$(getent hosts "${QUERY}.tailb0bb74.ts.net" 2>/dev/null | awk "{print \$1}")
IP=$(getent hosts "${QUERY}.${TS_DOMAIN}" 2>/dev/null | awk "{print \$1}")
fi
# 3. Fallback: cached IP
# 3. Fallback: cached IP (si todo falla)
if [[ -z "$IP" && -f "$CACHE" ]]; then
IP=$(grep "^${QUERY} " "$CACHE" 2>/dev/null | awk "{print \$2}")
fi
@ -30,7 +41,7 @@ if [[ -z "$IP" ]]; then
exit 1
fi
# Save to cache
# Save to cache for next time
mkdir -p "$(dirname "$CACHE")"
grep -v "^${QUERY} " "$CACHE" > "${CACHE}.tmp" 2>/dev/null || true
echo "${QUERY} ${IP}" >> "${CACHE}.tmp"

32
ssh-config.example Normal file
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@ -0,0 +1,32 @@
# Ejemplo de ~/.ssh/config para usar con los scripts de red
#
# ssh-mdns-proxy resuelve en este orden:
# 1. mDNS (.local) - red LAN
# 2. Tailscale DNS - fuera de LAN
# 3. Cache local - si todo falla
#
# Personalizar:
# - Cambiar User por tu usuario
# - Cambiar tailb0bb74 por tu dominio Tailscale
# - Agregar/quitar hosts segun tu red
# - Los aliases (dell, lenovo) se configuran en ssh-mdns-proxy
Host lenovo-ideapad
HostName lenovo-ideapad
User andres
ProxyCommand ~/.local/bin/ssh-mdns-proxy %h %p
Host hp62a
HostName hp62a
User andres
ProxyCommand ~/.local/bin/ssh-mdns-proxy %h %p
Host dell
HostName dell
User andres
ProxyCommand ~/.local/bin/ssh-mdns-proxy %h %p
# Ejemplo con ssh-fallback (Tailscale + IP LAN fija):
# Host servidor
# User usuario
# ProxyCommand ~/.local/bin/ssh-fallback servidor.tailXXXXX.ts.net 192.168.1.X %p