---
title: nw_error_domain_posix
framework: network
role: symbol
role_heading: Global Variable
path: network/nw_error_domain_posix
---

# nw_error_domain_posix

A POSIX error, which is used for most network protocol and routing errors.

## Declaration

```swift
var nw_error_domain_posix: nw_error_domain_t { get }
```

## See Also

### Error Domain Constants

- [nw_error_domain_invalid](network/nw_error_domain_invalid.md)
- [nw_error_domain_dns](network/nw_error_domain_dns.md)
- [nw_error_domain_tls](network/nw_error_domain_tls.md)