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Htpasswd — AI Agent Skill | BytesAgain

📖 About This Skill

name: HtPasswd description: "Generate htpasswd entries for Apache/Nginx basic auth password management. Use when creating credentials, managing password files, or verifying users." version: "3.0.0" author: "BytesAgain" homepage: https://bytesagain.com source: https://github.com/bytesagain/ai-skills tags: ["htpasswd","password","auth","apache","nginx","security"] categories: ["Developer Tools", "Utility"]

HtPasswd

A real htpasswd file manager for Apache/Nginx HTTP basic authentication. Create password files, add/remove users, verify passwords, and list users. Supports apr1 (Apache MD5), SHA-256, and SHA-512 hash algorithms via openssl.

Commands

| Command | Description | |---------|-------------| | htpasswd create | Create a new htpasswd file with the first user (fails if file exists) | | htpasswd add | Add a user to an existing file (or update password if user exists) | | htpasswd delete | Remove a user from the htpasswd file | | htpasswd verify | Verify a user's password (supports apr1, sha256, sha512, sha1, crypt) | | htpasswd list | List all users with their hash algorithm type | | htpasswd version | Show version | | htpasswd help | Show available commands and usage |

Configuration

| Variable | Default | Description | |----------|---------|-------------| | HTPASSWD_ALGO | apr1 | Hash algorithm: apr1, sha256, or sha512 |

Requirements

Bash 4+ (set -euo pipefail)

openssl — for password hashing and verification

grep, sed — standard text utilities

No external dependencies or API keys

When to Use

1. Setting up basic auth — htpasswd create /etc/nginx/.htpasswd admin secret to create a new file 2. Managing users — htpasswd add to add users, htpasswd delete to remove them 3. Password verification — htpasswd verify to check if a password is correct 4. Security audits — htpasswd list shows all users and their hash types 5. Stronger hashing — Set HTPASSWD_ALGO=sha512 for SHA-512 instead of default apr1

Examples

# Create a new htpasswd file
htpasswd create /etc/nginx/.htpasswd admin MySecretPass
Add another user
htpasswd add /etc/nginx/.htpasswd editor AnotherPass
Use SHA-512 for stronger hashing
HTPASSWD_ALGO=sha512 htpasswd add /etc/nginx/.htpasswd secure_user StrongPass
List all users
htpasswd list /etc/nginx/.htpasswd
Verify a password
htpasswd verify /etc/nginx/.htpasswd admin MySecretPass
Delete a user
htpasswd delete /etc/nginx/.htpasswd editor

Example Output

$ htpasswd create /tmp/.htpasswd admin secret123 ┌──────────────────────────────────────────────────┐ │ htpasswd File Created │ ├──────────────────────────────────────────────────┤ │ File: /tmp/.htpasswd │ │ User: admin │ │ Algo: apr1 │ │ Perms: 640 (owner rw, group r) │ ├──────────────────────────────────────────────────┤ │ ✅ File created with 1 user │ └──────────────────────────────────────────────────┘ $ htpasswd list /tmp/.htpasswd ┌──────────────────────────────────────────────────┐ │ htpasswd Users │ ├──────────────────────────────────────────────────┤ │ File: /tmp/.htpasswd │ │ Users: 2 │ ├──────────────────────────────────────────────────┤ │ 1. admin [apr1 (MD5) ] │ │ 2. editor [sha512 ] │ └──────────────────────────────────────────────────┘

$ htpasswd verify /tmp/.htpasswd admin secret123 ┌──────────────────────────────────────────────────┐ │ Password Verification │ ├──────────────────────────────────────────────────┤ │ File: /tmp/.htpasswd │ │ User: admin │ │ Result: ✅ Password CORRECT │ └──────────────────────────────────────────────────┘

Security Notes

Files are created with 640 permissions (owner read/write, group read)

Default algorithm is apr1 (Apache MD5) — widely compatible

Use HTPASSWD_ALGO=sha512 for stronger hashing on modern systems

Usernames cannot contain : or whitespace characters

Existing users get their password replaced when using add

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⚡ When to Use

Trigger	Action
2. Managing users — `htpasswd add` to add users, `htpasswd delete` to remove them
3. Password verification — `htpasswd verify` to check if a password is correct
4. Security audits — `htpasswd list` shows all users and their hash types
5. Stronger hashing — Set `HTPASSWD_ALGO=sha512` for SHA-512 instead of default apr1

💡 Examples

# Create a new htpasswd file
htpasswd create /etc/nginx/.htpasswd admin MySecretPass
Add another user
htpasswd add /etc/nginx/.htpasswd editor AnotherPass
Use SHA-512 for stronger hashing
HTPASSWD_ALGO=sha512 htpasswd add /etc/nginx/.htpasswd secure_user StrongPass
List all users
htpasswd list /etc/nginx/.htpasswd
Verify a password
htpasswd verify /etc/nginx/.htpasswd admin MySecretPass
Delete a user
htpasswd delete /etc/nginx/.htpasswd editor

Example Output

$ htpasswd create /tmp/.htpasswd admin secret123 ┌──────────────────────────────────────────────────┐ │ htpasswd File Created │ ├──────────────────────────────────────────────────┤ │ File: /tmp/.htpasswd │ │ User: admin │ │ Algo: apr1 │ │ Perms: 640 (owner rw, group r) │ ├──────────────────────────────────────────────────┤ │ ✅ File created with 1 user │ └──────────────────────────────────────────────────┘ $ htpasswd list /tmp/.htpasswd ┌──────────────────────────────────────────────────┐ │ htpasswd Users │ ├──────────────────────────────────────────────────┤ │ File: /tmp/.htpasswd │ │ Users: 2 │ ├──────────────────────────────────────────────────┤ │ 1. admin [apr1 (MD5) ] │ │ 2. editor [sha512 ] │ └──────────────────────────────────────────────────┘

$ htpasswd verify /tmp/.htpasswd admin secret123 ┌──────────────────────────────────────────────────┐ │ Password Verification │ ├──────────────────────────────────────────────────┤ │ File: /tmp/.htpasswd │ │ User: admin │ │ Result: ✅ Password CORRECT │ └──────────────────────────────────────────────────┘

⚙️ Configuration

| Variable | Default | Description | |----------|---------|-------------| | HTPASSWD_ALGO | apr1 | Hash algorithm: apr1, sha256, or sha512 |

Trigger	Action
2. Managing users — `htpasswd add` to add users, `htpasswd delete` to remove them
3. Password verification — `htpasswd verify` to check if a password is correct
4. Security audits — `htpasswd list` shows all users and their hash types
5. Stronger hashing — Set `HTPASSWD_ALGO=sha512` for SHA-512 instead of default apr1