> Source: [sk108254](https://support.checkpoint.com/results/sk/sk108254)

# sk108254 - "Authentication token manipulation error" when trying to change user's password with the "passwd" command on Gaia OS

| Property | Value |
|----------|-------|
| Solution ID | sk108254 |
| Date Created | 2015-10-19 |
| Last Modified | 2024-10-22 |
| Technical Level | Advanced |
| Products | Security Gateway, Security Management Server, Multi-Domain Security Management Server |
| Versions | R81.10 (EOS), R81 (EOS), R81.10 (EOS), R81 (EOS), R81 (EOS), R81.10 (EOS) |
| OS | Gaia |

## Symptoms

- "`Authentication token manipulation error`" when trying to change user's password with the "*passwd*" command on Gaia OS.

*Example*:

```

[Expert@HostName:0]# passwd <UserName>
Changing password for user <UserName>.
Enter new UNIX password:
Retype new UNIX password:
bad credentials
bad credentials
bad credentials
passwd: Authentication token manipulation error
[Expert@HostName:0]#
```

## Cause

On Gaia OS, the user's password must be changed only in Gaia Portal / Gaia Clish.

## Solution

This solution requires authentication. Please log in to view the full solution.

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content