> Source: [sk115279](https://support.checkpoint.com/results/sk/sk115279)

# sk115279 - Split DNS does not work on Mac OS X

| Property | Value |
|----------|-------|
| Solution ID | sk115279 |
| Date Created | 2017-01-01 |
| Last Modified | 2017-04-09 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * Split DNS does not work on Mac OS X.
* When connect to SNX from Mac OS X, name resolution fails because it does not use the Office Mode IP address for DNS Server. Instead, it uses the DNS setting from Mac OS X.
* Traffic capture on Mac OS X shows that DNS traffic leaves the physical interface instead of SNX (utun0).
* The issue only happens in DHCP environment, in which the Mac OS X machine obtains the IP address and DNS configuration from the DHCP Server.

## Cause

Unlike Windows OS, Mac OS X does not perform split DNS.

## 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
