Network 101

Software development skill, available on Zeplik

Network 101 is a ready-to-run software development skill on Zeplik. Produces configured HTTP/HTTPS/SNMP/SMB targets plus enumeration and log-analysis guidance for isolated pentest labs. Ask in plain language and Zeplik applies the skill's method for you inside the conversation, on whichever AI model you prefer. It returns a structured document you can keep and reuse: service config steps, enumeration commands, and log-analysis notes for a lab.

The Network 101 skill loads automatically when your request matches it, or you can invoke it directly by typing /network-101 in any chat. It works with attachments, connectors, and any model that supports the task, so you get the same expert method every time without setting anything up.

What the Network 101 skill can do

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Pick a prompt to open it in the Zeplik app. If you are not signed in yet, your prompt is waiting for you the moment you do.

How the Network 101 skill works

Network 101

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 targets. Use only in isolated labs, never against production or third-party systems.

Prerequisites

  • A host for services (Windows Server or Linux) and a tester box (Kali or similar)
  • Administrative access to the target; firewall access for port configuration
  • Basic networking knowledge (IP addressing, ports)

Workflow

1. HTTP Server (Port 80)

  • Windows IIS: IIS Manager -> Sites -> Add Website -> set name/path -> bind to IP and port 80.
  • Linux Apache: install apache2, systemctl start/enable apache2, drop an index.html in /var/www/html, verify with curl http://localhost.
  • Firewall: sudo ufw allow 80/tcp (Linux) or a New-NetFirewallRule inbound TCP 80 (Windows).

2. HTTPS Server (Port 443)

  • Generate a self-signed cert with openssl req -x509 -nodes -days 365 -newkey rsa:2048 (key + crt).
  • Enable the Apache SSL module (a2enmod ssl), configure the SSL virtual host, a2ensite default-ssl, reload.
  • Verify: nmap -p 443 <ip>, openssl s_client -connect <ip>:443, curl -kv https://<ip>.

3. SNMP Service (Port 161/UDP)

  • Linux: install snmpd snmp, set community strings in /etc/snmp/snmpd.conf (rocommunity public, rwcommunity private), restart snmpd.
  • Windows: add the SNMP Service feature, configure communities in the service properties.
  • Enumerate: snmpwalk -c public -v1 <ip>; system info OID 1.3.6.1.2.1.1; processes OID 1.3.6.1.2.1.25.4.2.1.2; snmp-check <ip> -c public; community brute force with onesixtyone.

4. SMB Service (Port 445)

  • Windows: share a folder via Advanced Sharing, set share + NTFS permissions.
  • Linux Samba: install samba, create a share dir, add a [public] stanza to /etc/samba/smb.conf, restart smbd.
  • Enumerate: smbclient -L //<ip> -N (list), smbclient //<ip>/share -N (connect), smbmap -H <ip>, enum4linux -a <ip>, nmap --script smb-vuln* <ip>.

5. Analyze Service Logs

  • Apache access/error logs in /var/log/apache2/; IIS logs in C:\inetpub\logs\LogFiles\.
  • Review request patterns (e.g. POST requests, user-agent frequency) for analysis.

Quick Reference

Essential Ports

ServicePortProtocol
HTTP80TCP
HTTPS443TCP
SNMP161UDP
SMB445TCP
NetBIOS137-139TCP/UDP

Verification Commands

curl -I http://target · curl -kI https://target · snmpwalk -c public -v1 target · smbclient -L //target -N

Common Tools

ToolPurpose
nmapPort scanning and scripts
niktoWeb vulnerability scanning
snmpwalkSNMP enumeration
enum4linuxSMB/NetBIOS enumeration
smbclientSMB connection
gobusterDirectory 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; bind to 0.0.0.0 for remote access.
  • Keep lab environments isolated from production.

Troubleshooting

IssueSolution
Port not accessibleCheck firewall (ufw, iptables, Windows Firewall)
Service not startingjournalctl -u <service>
SNMP timeoutVerify UDP 161 open, check community string
SMB access deniedVerify share permissions and credentials
HTTPS cert errorAccept self-signed cert or add to trusted store
Cannot connect remotelyBind to 0.0.0.0 instead of localhost

Output

A lab setup guide: the service configuration steps performed, the enumeration commands to run against each target, and log-analysis notes -- scoped to an isolated, authorized lab environment.

How to use the Network 101 skill

  1. Sign in to Zeplik

    Create a free Zeplik account or sign in. New accounts start with free credits, so you can try the Network 101 skill right away.

  2. Describe your software development task

    Ask in plain language, or type /network-101 to invoke the skill directly. Zeplik recognizes the Network 101 skill and applies its method.

  3. Review and refine the result

    Zeplik returns a structured document you can edit, download, and reuse. Ask follow-ups to refine it.

Source and credit

Author
davila7 community
License
MIT

Adapted from the open-source davila7/claude-code-templates project and tuned to run natively on Zeplik. View source on GitHub.

Frequently asked questions

What is the Network 101 skill?
Network 101 is a ready-to-run software development skill on Zeplik. Produces configured HTTP/HTTPS/SNMP/SMB targets plus enumeration and log-analysis guidance for isolated pentest labs. Ask in plain language and Zeplik applies the skill's method for you inside the conversation, on whichever AI model you prefer. It returns a structured document you can keep and reuse: service config steps, enumeration commands, and log-analysis notes for a lab.
How do I use Network 101 on Zeplik?
Sign in to Zeplik and ask in plain language, or type /network-101 in any chat to invoke it directly. The skill applies its method and returns a result you can refine in the same conversation.
Which AI model does the Network 101 skill use?
Any model you choose. Zeplik works across every model in one chat, so the Network 101 skill runs on your preferred model for the task.
Where does the Network 101 skill come from?
The Network 101 skill is adapted from the open-source davila7/claude-code-templates project (MIT) and tuned to run natively on Zeplik. The original source is linked on this page.
How much does the Network 101 skill cost?
Using the skill is free to start. You only spend Zeplik credits when the assistant runs, and new accounts begin with free credits.

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