---
title: kCFStreamPropertyFTPAttemptPersistentConnection
framework: cfnetwork
role: symbol
role_heading: Global Variable
path: cfnetwork/kcfstreampropertyftpattemptpersistentconnection
---

# kCFStreamPropertyFTPAttemptPersistentConnection

## Declaration

```swift
let kCFStreamPropertyFTPAttemptPersistentConnection: CFString
```

## Discussion

Discussion FTP Attempt Persistent Connection stream property key for set and copy operations. Set this property to kCFBooleanTrue to enable the reuse of existing server connections; set this property to kCFBooleanFalse to not reuse existing server connections. By default, this property is set to kCFBooleanTrue.

## See Also

### Streams

- [CFReadStreamCreateForHTTPRequest(_:_:)](cfnetwork/cfreadstreamcreateforhttprequest(_:_:).md)
- [CFReadStreamCreateForStreamedHTTPRequest(_:_:_:)](cfnetwork/cfreadstreamcreateforstreamedhttprequest(_:_:_:).md)
- [kCFStreamPropertyHTTPAttemptPersistentConnection](cfnetwork/kcfstreampropertyhttpattemptpersistentconnection.md)
- [kCFStreamPropertyHTTPFinalRequest](cfnetwork/kcfstreampropertyhttpfinalrequest.md)
- [kCFStreamPropertyHTTPFinalURL](cfnetwork/kcfstreampropertyhttpfinalurl.md)
- [kCFStreamPropertyHTTPProxy](cfnetwork/kcfstreampropertyhttpproxy.md)
- [kCFStreamPropertyHTTPProxyHost](cfnetwork/kcfstreampropertyhttpproxyhost.md)
- [kCFStreamPropertyHTTPProxyPort](cfnetwork/kcfstreampropertyhttpproxyport.md)
- [kCFStreamPropertyHTTPRequestBytesWrittenCount](cfnetwork/kcfstreampropertyhttprequestbyteswrittencount.md)
- [kCFStreamPropertyHTTPResponseHeader](cfnetwork/kcfstreampropertyhttpresponseheader.md)
- [kCFStreamPropertyHTTPSProxyHost](cfnetwork/kcfstreampropertyhttpsproxyhost.md)
- [kCFStreamPropertyHTTPSProxyPort](cfnetwork/kcfstreampropertyhttpsproxyport.md)
- [kCFStreamPropertyHTTPShouldAutoredirect](cfnetwork/kcfstreampropertyhttpshouldautoredirect.md)
- [CFWriteStreamCreateWithFTPURL(_:_:)](cfnetwork/cfwritestreamcreatewithftpurl(_:_:).md)
- [CFReadStreamCreateWithFTPURL(_:_:)](cfnetwork/cfreadstreamcreatewithftpurl(_:_:).md)