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This skill should be used when the user asks to \"set up a web server\", \"configure HTTP or HTTPS\", \"perform SNMP enumeration\", \"configure SMB shares\", \"test network services\", or ne...
---
name: network-101-cc3177864700
description: "This skill should be used when the user asks to \"set up a web server\", \"configure HTTP or HTTPS\", \"perform SNMP enumeration\", \"configure SMB shares\", \"test network services\", or ne..."
risk: unknown
source: community
author: zebbern
date_added: "2026-02-27"
---
# Network 101
## Purpose
Configure and test common network services (HTTP, HTTPS, SNMP, SMB) for penetration testing lab environments. Enable hands-on practice with service enumeration, log analysis, and security testing against properly configured target systems.
## Inputs/Prerequisites
- Windows Server or Linux system for hosting services
- Kali Linux or similar for testing
- Administrative access to target system
- Basic networking knowledge (IP addressing, ports)
- Firewall access for port configuration
## Outputs/Deliverables
- Configured HTTP/HTTPS web server
- SNMP service with accessible communities
- SMB file shares with various permission levels
- Captured logs for analysis
- Documented enumeration results
## Core Workflow
### 1. Configure HTTP Server (Port 80)
Set up a basic HTTP web server for testing:
**Windows IIS Setup:**
1. Open IIS Manager (Internet Information Services)
2. Right-click Sites → Add Website
3. Configure site name and physical path
4. Bind to IP address and port 80
**Linux Apache Setup:**
```bash
# Install Apache
sudo apt update && sudo apt install apache2
# Start service
sudo systemctl start apache2
sudo systemctl enable apache2
# Create test page
echo "<html><body><h1>Test Page</h1></body></html>" | sudo tee /var/www/html/index.html
# Verify service
curl http://localhost
```
**Configure Firewall for HTTP:**
```bash
# Linux (UFW)
sudo ufw allow 80/tcp
# Windows PowerShell
New-NetFirewallRule -DisplayName "HTTP" -Direction Inbound -Protocol TCP -LocalPort 80 -Action Allow
```
### 2. Configure HTTPS Server (Port 443)
Set up secure HTTPS with SSL/TLS:
**Generate Self-Signed Certificate:**
```bash
# Linux - Generate certificate
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
-keyout /etc/ssl/private/apache-selfsigned.key \
-out /etc/ssl/certs/apache-selfsigned.crt
# Enable SSL module
sudo a2enmod ssl
sudo systemctl restart apache2
```
**Configure Apache for HTTPS:**
```bash
# Edit SSL virtual host
sudo nano /etc/apache2/sites-available/default-ssl.conf
# Enable site
sudo a2ensite default-ssl
sudo systemctl reload apache2
```
**Verify HTTPS Setup:**
```bash
# Check port 443 is open
nmap -p 443 192.168.1.1
# Test SSL connection
openssl s_client -connect 192.168.1.1:443
# Check certificate
curl -kv https://192.168.1.1
```
### 3. Configure SNMP Service (Port 161)
Set up SNMP for enumeration practice:
**Linux SNMP Setup:**
```bash
# Install SNMP daemon
sudo apt install snmpd snmp
# Configure community strings
sudo nano /etc/snmp/snmpd.conf
# Add these lines:
# rocommunity public
# rwcommunity private
# Restart service
sudo systemctl restart snmpd
```
**Windows SNMP Setup:**
1. Open Server Manager → Add Features
2. Select SNMP Service
3. Configure community strings in Services → SNMP Service → Properties
**SNMP Enumeration Commands:**
```bash
# Basic SNMP walk
snmpwalk -c public -v1 192.168.1.1
# Enumerate system info
snmpwalk -c public -v1 192.168.1.1 1.3.6.1.2.1.1
# Get running processes
snmpwalk -c public -v1 192.168.1.1 1.3.6.1.2.1.25.4.2.1.2
# SNMP check tool
snmp-check 192.168.1.1 -c public
# Brute force community strings
onesixtyone -c /usr/share/seclists/Discovery/SNMP/common-snmp-community-strings.txt 192.168.1.1
```
### 4. Configure SMB Service (Port 445)
Set up SMB file shares for enumeration:
**Windows SMB Share:**
1. Create folder to share
2. Right-click → Properties → Sharing → Advanced Sharing
3. Enable sharing and set permissions
4. Configure NTFS permissions
**Linux Samba Setup:**
```bash
# Install Samba
sudo apt install samba
# Create share directory
sudo mkdir -p /srv/samba/share
sudo chmod 777 /srv/samba/share
# Configure Samba
sudo nano /etc/samba/smb.conf
# Add share:
# [public]
# path = /srv/samba/share
# browsable = yes
# guest ok = yes
# read only = no
# Restart service
sudo systemctl restart smbd
```
**SMB Enumeration Commands:**
```bash
# List shares anonymously
smbclient -L //192.168.1.1 -N
# Connect to share
smbclient //192.168.1.1/share -N
# Enumerate with smbmap
smbmap -H 192.168.1.1
# Full enumeration
enum4linux -a 192.168.1.1
# Check for vulnerabilities
nmap --script smb-vuln* 192.168.1.1
```
### 5. Analyze Service Logs
Review logs for security analysis:
**HTTP/HTTPS Logs:**
```bash
# Apache access log
sudo tail -f /var/log/apache2/access.log
# Apache error log
sudo tail -f /var/log/apache2/error.log
# Windows IIS logs
# Location: C:\inetpub\logs\LogFiles\W3SVC1\
```
**Parse Log for Credentials:**
```bash
# Search for POST requests
grep "POST" /var/log/apache2/access.log
# Extract user agents
awk '{print $12}' /var/log/apache2/access.log | sort | uniq -c
```
## Quick Reference
### Essential Ports
| Service | Port | Protocol |
|---------|------|----------|
| HTTP | 80 | TCP |
| HTTPS | 443 | TCP |
| SNMP | 161 | UDP |
| SMB | 445 | TCP |
| NetBIOS | 137-139 | TCP/UDP |
### Service Verification Commands
```bash
# Check HTTP
curl -I http://target
# Check HTTPS
curl -kI https://target
# Check SNMP
snmpwalk -c public -v1 target
# Check SMB
smbclient -L //target -N
```
### Common Enumeration Tools
| Tool | Purpose |
|------|---------|
| nmap | Port scanning and scripts |
| nikto | Web vulnerability scanning |
| snmpwalk | SNMP enumeration |
| enum4linux | SMB/NetBIOS enumeration |
| smbclient | SMB connection |
| gobuster | Directory brute forcing |
## Constraints
- Self-signed certificates trigger browser warnings
- SNMP v1/v2c communities transmit in cleartext
- Anonymous SMB access is often disabled by default
- Firewall rules must allow inbound connections
- Lab environments should be isolated from production
## Examples
### Example 1: Complete HTTP Lab Setup
```bash
# Install and configure
sudo apt install apache2
sudo systemctl start apache2
# Create login page
cat << 'EOF' | sudo tee /var/www/html/login.html
<html>
<body>
<form method="POST" action="login.php">
Username: <input type="text" name="user"><br>
Password: <input type="password" name="pass"><br>
<input type="submit" value="Login">
</form>
</body>
</html>
EOF
# Allow through firewall
sudo ufw allow 80/tcp
```
### Example 2: SNMP Testing Setup
```bash
# Quick SNMP configuration
sudo apt install snmpd
echo "rocommunity public" | sudo tee -a /etc/snmp/snmpd.conf
sudo systemctl restart snmpd
# Test enumeration
snmpwalk -c public -v1 localhost
```
### Example 3: SMB Anonymous Access
```bash
# Configure anonymous share
sudo apt install samba
sudo mkdir /srv/samba/anonymous
sudo chmod 777 /srv/samba/anonymous
# Test access
smbclient //localhost/anonymous -N
```
## Troubleshooting
| Issue | Solution |
|-------|----------|
| Port not accessible | Check firewall rules (ufw, iptables, Windows Firewall) |
| Service not starting | Check logs with `journalctl -u service-name` |
| SNMP timeout | Verify UDP 161 is open, check community string |
| SMB access denied | Verify share permissions and user credentials |
| HTTPS certificate error | Accept self-signed cert or add to trusted store |
| Cannot connect remotely | Bind service to 0.0.0.0 instead of localhost |
## When to Use
This skill is applicable to execute the workflow or actions described in the overview.
---
<!-- AGI-INTEGRATION-START -->
## AGI Framework Integration
> **Adapted for [@techwavedev/agi-agent-kit](https://www.npmjs.com/package/@techwavedev/agi-agent-kit)**
> Original source: [antigravity-awesome-skills](https://github.com/sickn33/antigravity-awesome-skills)
### Memory-First Protocol
Retrieve prior API design decisions, database schema choices, and error handling patterns. Cache API response templates for consistent error formatting.
```bash
# Check for prior backend/API context before starting
python3 execution/memory_manager.py auto --query "API design patterns and architecture decisions for Network 101"
```
### Storing Results
After completing work, store backend/API decisions for future sessions:
```bash
python3 execution/memory_manager.py store \
--content "API architecture: REST with HATEOAS, JWT auth, rate limiting at 100 req/min per tenant" \
--type decision --project <project> \
--tags network-101 backend
```
### Multi-Agent Collaboration
Share API contract changes with frontend agents so they update their client code, and with QA agents for test coverage.
```bash
python3 execution/cross_agent_context.py store \
--agent "<your-agent>" \
--action "Implemented API endpoints — 5 new routes with OpenAPI spec and integration tests" \
--project <project>
```
### Agent Team: Code Review
After implementation, dispatch `code_review_team` for two-stage review (spec compliance + code quality) before merging.
<!-- AGI-INTEGRATION-END -->
---
name: network-101-cc3177864700
description: "This skill should be used when the user asks to \"set up a web server\", \"configure HTTP or HTTPS\", \"perform SNMP enumeration\", \"configure SMB shares\", \"test network services\", or ne..."
risk: unknown
source: community
author: zebbern
date_added: "2026-02-27"
---
# Network 101
## Purpose
Configure and test common network services (HTTP, HTTPS, SNMP, SMB) for penetration testing lab environments. Enable hands-on practice with service enumeration, log analysis, and security testing against properly configured target systems.
## Inputs/Prerequisites
- Windows Server or Linux system for hosting services
- Kali Linux or similar for testing
- Administrative access to target system
- Basic networking knowledge (IP addressing, ports)
- Firewall access for port configuration
## Outputs/Deliverables
- Configured HTTP/HTTPS web server
- SNMP service with accessible communities
- SMB file shares with various permission levels
- Captured logs for analysis
- Documented enumeration results
## Core Workflow
### 1. Configure HTTP Server (Port 80)
Set up a basic HTTP web server for testing:
**Windows IIS Setup:**
1. Open IIS Manager (Internet Information Services)
2. Right-click Sites → Add Website
3. Configure site name and physical path
4. Bind to IP address and port 80
**Linux Apache Setup:**
```bash
# Install Apache
sudo apt update && sudo apt install apache2
# Start service
sudo systemctl start apache2
sudo systemctl enable apache2
# Create test page
echo "<html><body><h1>Test Page</h1></body></html>" | sudo tee /var/www/html/index.html
# Verify service
curl http://localhost
```
**Configure Firewall for HTTP:**
```bash
# Linux (UFW)
sudo ufw allow 80/tcp
# Windows PowerShell
New-NetFirewallRule -DisplayName "HTTP" -Direction Inbound -Protocol TCP -LocalPort 80 -Action Allow
```
### 2. Configure HTTPS Server (Port 443)
Set up secure HTTPS with SSL/TLS:
**Generate Self-Signed Certificate:**
```bash
# Linux - Generate certificate
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
-keyout /etc/ssl/private/apache-selfsigned.key \
-out /etc/ssl/certs/apache-selfsigned.crt
# Enable SSL module
sudo a2enmod ssl
sudo systemctl restart apache2
```
**Configure Apache for HTTPS:**
```bash
# Edit SSL virtual host
sudo nano /etc/apache2/sites-available/default-ssl.conf
# Enable site
sudo a2ensite default-ssl
sudo systemctl reload apache2
```
**Verify HTTPS Setup:**
```bash
# Check port 443 is open
nmap -p 443 192.168.1.1
# Test SSL connection
openssl s_client -connect 192.168.1.1:443
# Check certificate
curl -kv https://192.168.1.1
```
### 3. Configure SNMP Service (Port 161)
Set up SNMP for enumeration practice:
**Linux SNMP Setup:**
```bash
# Install SNMP daemon
sudo apt install snmpd snmp
# Configure community strings
sudo nano /etc/snmp/snmpd.conf
# Add these lines:
# rocommunity public
# rwcommunity private
# Restart service
sudo systemctl restart snmpd
```
**Windows SNMP Setup:**
1. Open Server Manager → Add Features
2. Select SNMP Service
3. Configure community strings in Services → SNMP Service → Properties
**SNMP Enumeration Commands:**
```bash
# Basic SNMP walk
snmpwalk -c public -v1 192.168.1.1
# Enumerate system info
snmpwalk -c public -v1 192.168.1.1 1.3.6.1.2.1.1
# Get running processes
snmpwalk -c public -v1 192.168.1.1 1.3.6.1.2.1.25.4.2.1.2
# SNMP check tool
snmp-check 192.168.1.1 -c public
# Brute force community strings
onesixtyone -c /usr/share/seclists/Discovery/SNMP/common-snmp-community-strings.txt 192.168.1.1
```
### 4. Configure SMB Service (Port 445)
Set up SMB file shares for enumeration:
**Windows SMB Share:**
1. Create folder to share
2. Right-click → Properties → Sharing → Advanced Sharing
3. Enable sharing and set permissions
4. Configure NTFS permissions
**Linux Samba Setup:**
```bash
# Install Samba
sudo apt install samba
# Create share directory
sudo mkdir -p /srv/samba/share
sudo chmod 777 /srv/samba/share
# Configure Samba
sudo nano /etc/samba/smb.conf
# Add share:
# [public]
# path = /srv/samba/share
# browsable = yes
# guest ok = yes
# read only = no
# Restart service
sudo systemctl restart smbd
```
**SMB Enumeration Commands:**
```bash
# List shares anonymously
smbclient -L //192.168.1.1 -N
# Connect to share
smbclient //192.168.1.1/share -N
# Enumerate with smbmap
smbmap -H 192.168.1.1
# Full enumeration
enum4linux -a 192.168.1.1
# Check for vulnerabilities
nmap --script smb-vuln* 192.168.1.1
```
### 5. Analyze Service Logs
Review logs for security analysis:
**HTTP/HTTPS Logs:**
```bash
# Apache access log
sudo tail -f /var/log/apache2/access.log
# Apache error log
sudo tail -f /var/log/apache2/error.log
# Windows IIS logs
# Location: C:\inetpub\logs\LogFiles\W3SVC1\
```
**Parse Log for Credentials:**
```bash
# Search for POST requests
grep "POST" /var/log/apache2/access.log
# Extract user agents
awk '{print $12}' /var/log/apache2/access.log | sort | uniq -c
```
## Quick Reference
### Essential Ports
| Service | Port | Protocol |
|---------|------|----------|
| HTTP | 80 | TCP |
| HTTPS | 443 | TCP |
| SNMP | 161 | UDP |
| SMB | 445 | TCP |
| NetBIOS | 137-139 | TCP/UDP |
### Service Verification Commands
```bash
# Check HTTP
curl -I http://target
# Check HTTPS
curl -kI https://target
# Check SNMP
snmpwalk -c public -v1 target
# Check SMB
smbclient -L //target -N
```
### Common Enumeration Tools
| Tool | Purpose |
|------|---------|
| nmap | Port scanning and scripts |
| nikto | Web vulnerability scanning |
| snmpwalk | SNMP enumeration |
| enum4linux | SMB/NetBIOS enumeration |
| smbclient | SMB connection |
| gobuster | Directory brute forcing |
## Constraints
- Self-signed certificates trigger browser warnings
- SNMP v1/v2c communities transmit in cleartext
- Anonymous SMB access is often disabled by default
- Firewall rules must allow inbound connections
- Lab environments should be isolated from production
## Examples
### Example 1: Complete HTTP Lab Setup
```bash
# Install and configure
sudo apt install apache2
sudo systemctl start apache2
# Create login page
cat << 'EOF' | sudo tee /var/www/html/login.html
<html>
<body>
<form method="POST" action="login.php">
Username: <input type="text" name="user"><br>
Password: <input type="password" name="pass"><br>
<input type="submit" value="Login">
</form>
</body>
</html>
EOF
# Allow through firewall
sudo ufw allow 80/tcp
```
### Example 2: SNMP Testing Setup
```bash
# Quick SNMP configuration
sudo apt install snmpd
echo "rocommunity public" | sudo tee -a /etc/snmp/snmpd.conf
sudo systemctl restart snmpd
# Test enumeration
snmpwalk -c public -v1 localhost
```
### Example 3: SMB Anonymous Access
```bash
# Configure anonymous share
sudo apt install samba
sudo mkdir /srv/samba/anonymous
sudo chmod 777 /srv/samba/anonymous
# Test access
smbclient //localhost/anonymous -N
```
## Troubleshooting
| Issue | Solution |
|-------|----------|
| Port not accessible | Check firewall rules (ufw, iptables, Windows Firewall) |
| Service not starting | Check logs with `journalctl -u service-name` |
| SNMP timeout | Verify UDP 161 is open, check community string |
| SMB access denied | Verify share permissions and user credentials |
| HTTPS certificate error | Accept self-signed cert or add to trusted store |
| Cannot connect remotely | Bind service to 0.0.0.0 instead of localhost |
## When to Use
This skill is applicable to execute the workflow or actions described in the overview.
---
<!-- AGI-INTEGRATION-START -->
## AGI Framework Integration
> **Adapted for [@techwavedev/agi-agent-kit](https://www.npmjs.com/package/@techwavedev/agi-agent-kit)**
> Original source: [antigravity-awesome-skills](https://github.com/sickn33/antigravity-awesome-skills)
### Memory-First Protocol
Retrieve prior API design decisions, database schema choices, and error handling patterns. Cache API response templates for consistent error formatting.
```bash
# Check for prior backend/API context before starting
python3 execution/memory_manager.py auto --query "API design patterns and architecture decisions for Network 101"
```
### Storing Results
After completing work, store backend/API decisions for future sessions:
```bash
python3 execution/memory_manager.py store \
--content "API architecture: REST with HATEOAS, JWT auth, rate limiting at 100 req/min per tenant" \
--type decision --project <project> \
--tags network-101 backend
```
### Multi-Agent Collaboration
Share API contract changes with frontend agents so they update their client code, and with QA agents for test coverage.
```bash
python3 execution/cross_agent_context.py store \
--agent "<your-agent>" \
--action "Implemented API endpoints — 5 new routes with OpenAPI spec and integration tests" \
--project <project>
```
### Agent Team: Code Review
After implementation, dispatch `code_review_team` for two-stage review (spec compliance + code quality) before merging.
<!-- AGI-INTEGRATION-END -->
Imported from the listed AgentSkill.sh category. Complete supplied package files and notices are retained. Required external tools and credentials are not installed. No bundled code was executed during import. Individual agent task behavior has not been tested.