# License Server Host Information

**Updated:** 2025-12-01
**Server:** dalidou (ThinkPad W520)
**Status:** OPERATIONAL

---

## Quick Reference - What to Tell Siemens

For your permanent NX license, provide:

```
Hostname:    dalidou
CID:         COMPOSITE=88F027D30355
Port:        28000
```

---

## Server Details

| Field | Value |
|-------|-------|
| **Hostname** | `dalidou` |
| **Composite ID (CID)** | `COMPOSITE=88F027D30355` |
| **Ethernet MAC Address** | `f0:de:f1:e6:e4:6a` |
| **Host ID (no colons)** | `f0def1e6e46a` |
| **Local Network IP (Wi-Fi)** | `192.168.86.50` |
| **Tailscale IP** | `100.80.199.40` |
| **NX License Port** | `28000` |

### All CIDs (from getcid command)
| Interface | CID | MAC |
|-----------|-----|-----|
| **enp0s25 (Ethernet)** | `COMPOSITE=88F027D30355` | F0DEF1E6E46A |
| wlp3s0 (Wi-Fi) | `COMPOSITE=F3B17C78293B` | 2477036FCD80 |

**Use the Ethernet CID** - it's more stable.

---

## Current License Configuration

**Permanent license valid until:** March 2, 2026

| License | Status |
|---------|--------|
| NX93300 (NX Design for Industrial Design) | 1 seat |
| SC13500 (Simcenter Structures) | 1 seat |
| TC10101 (Tc Author) | 1 seat |
| TC50100 (Teamcenter Rapid Start) | 1 seat |
| NX35050 (NX Value Based Licensing) | 50 tokens |
| + many more features | See license file |

---

## Client Setup (Windows Laptops)

### Step 1: Set Environment Variable

1. Open **System Properties** (`Win + R` → `sysdm.cpl`)
2. Click **Advanced** → **Environment Variables**
3. Under **System variables**, click **New**
4. Add:
   - **Variable name:** `SPLM_LICENSE_SERVER`
   - **Variable value:** `28000@dalidou;28000@100.80.199.40;29000@DESKTOP-PRECISION`

### Step 2: Verify in Siemens Licensing Tool

1. Open **Siemens Licensing Tool**
2. Go to **Environment Settings**
3. Confirm all servers show **Connection status: Successful**

### License Server Priority

| Priority | Server | Use Case |
|----------|--------|----------|
| 1st | `28000@dalidou` | Local network (fastest) |
| 2nd | `28000@100.80.199.40` | Remote via Tailscale |
| 3rd | `29000@DESKTOP-PRECISION` | Fallback if dalidou down |

---

## Server Installation (Already Done on Dalidou)

### Location
```
/opt/Siemens/LicenseServer/
├── lmgrd           # FlexNet license manager
├── saltd           # Siemens vendor daemon (v5)
├── ugslmd -> saltd # Symlink for compatibility
├── lmutil          # License utilities
├── License_Ugslmd.lic  # License file
└── logs/
    └── lmgrd.log   # Server log
```

### Systemd Service
```bash
# Service file: /etc/systemd/system/siemens-lmgrd.service
sudo systemctl status siemens-lmgrd   # Check status
sudo systemctl start siemens-lmgrd    # Start
sudo systemctl stop siemens-lmgrd     # Stop
sudo systemctl restart siemens-lmgrd  # Restart
```

### Manual Commands
```bash
cd /opt/Siemens/LicenseServer

# Check license status
./lmutil lmstat -a

# Check specific feature
./lmutil lmstat -f NX93300

# View log
tail -50 logs/lmgrd.log

# Start manually (if systemd not working)
./lmgrd -c License_Ugslmd.lic -l logs/lmgrd.log
```

### Firewall
```bash
# Port 28000 is open
sudo ufw status | grep 28000
```

---

## Updating the License File

When you receive a new license from Siemens:

1. **Edit the SERVER line** to match dalidou:
   ```
   SERVER dalidou ANY 28000
   VENDOR ugslmd
   ```

2. **Copy to dalidou:**
   ```bash
   scp new_license.lic root@dalidou:/opt/Siemens/LicenseServer/License_Ugslmd.lic
   ```

3. **Restart the service:**
   ```bash
   ssh root@dalidou "systemctl restart siemens-lmgrd"
   ```

4. **Verify:**
   ```bash
   ssh root@dalidou "cd /opt/Siemens/LicenseServer && ./lmutil lmstat -a"
   ```

---

## ThinkPad Setup (When Repaired)

On your ThinkPad, follow the same **Client Setup** steps above:

1. Set `SPLM_LICENSE_SERVER` environment variable:
   ```
   28000@dalidou;28000@100.80.199.40
   ```

2. Make sure **Tailscale** is installed and connected

3. Test with Siemens Licensing Tool

That's it - no license server installation needed on the ThinkPad!

---

## Troubleshooting

### License server not responding
```bash
# Check if running
ssh root@dalidou "ps aux | grep lmgrd"

# Check log for errors
ssh root@dalidou "tail -50 /opt/Siemens/LicenseServer/logs/lmgrd.log"

# Restart
ssh root@dalidou "systemctl restart siemens-lmgrd"
```

### Can't connect from laptop - Tailscale connectivity issues

**Problem:** Windows laptop can't reach dalidou via Tailscale (100.80.199.40), but local network (192.168.86.50) works fine.

**Quick Fix (if on same local network):**

Update `SPLM_LICENSE_SERVER` environment variable to prioritize local IP:

1. Open **PowerShell as Administrator**
2. Run:
   ```powershell
   [System.Environment]::SetEnvironmentVariable('SPLM_LICENSE_SERVER', '28000@192.168.86.50;28000@100.80.199.40', 'Machine')
   ```
3. Restart NX

Or via GUI:
- `Win + R` → `sysdm.cpl`
- **Advanced** → **Environment Variables**
- Edit `SPLM_LICENSE_SERVER` to: `28000@192.168.86.50;28000@100.80.199.40`

**Root Cause:** The hostname `dalidou` resolves to Tailscale IP via DNS, which may be unreachable if Tailscale connectivity is broken between devices.

**Verification steps:**
```powershell
# Test local connection (should succeed)
Test-NetConnection -ComputerName 192.168.86.50 -Port 28000

# Test Tailscale connection (may fail)
Test-NetConnection -ComputerName 100.80.199.40 -Port 28000

# Check what dalidou resolves to
Resolve-DnsName dalidou
```

### Tailscale disconnection issues on Windows

If Tailscale keeps disconnecting on Windows:
1. Run in PowerShell (Admin):
   ```powershell
   tailscale set --unattended
   Restart-Service -Name "Tailscale"
   ```
2. Disable key expiry in Tailscale admin console: https://login.tailscale.com/admin/machines

### "All licenses in use" error
Only 1 seat per license - close NX on other machines first.

---

## SolidWorks (Future)

When setting up SolidWorks SNL license:

| Field | Value |
|-------|-------|
| Server Name | `dalidou` |
| MAC Address | `F0DEF1E6E46A` |
| License Server Port | `25734` |

---

## Port Reference

| Service | Port | Protocol |
|---------|------|----------|
| Siemens lmgrd (NX) | 28000 | TCP |
| SolidWorks SNL | 25734 | TCP |

---

## History

| Date | Change |
|------|--------|
| 2025-12-01 | Installed Siemens License Server v5.0.0 on dalidou |
| 2025-12-01 | Configured systemd auto-start service |
| 2025-12-01 | Set up SPLM_LICENSE_SERVER on Precision |
| 2025-12-01 | Temporary license active until Dec 3 |