# Settings for Windows XP/2003

**URL:** <https://discourse.mitmproxy.org/t/settings-for-windows-xp-2003/1001>\
**Category:** help\
**Created:** [April 23, 2018, 3:40pm UTC](https://discourse.mitmproxy.org/t/settings-for-windows-xp-2003/1001 "2018-04-23T15:40:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SergeyVSB](https://avatars.discourse-cdn.com/v4/letter/s/e9a140/32.png) [@SergeyVSB](https://discourse.mitmproxy.org/u/SergeyVSB)\
**Post date:** [April 23, 2018, 3:40pm UTC](https://discourse.mitmproxy.org/t/settings-for-windows-xp-2003/1001/1 "2018-04-23T15:40:08Z")

</div>

Hello. I need to use site that has no common chipher with Windows XP. Is it possible configure mitmproxy for it?

Current log:

192.168.0.1:2838: clientconnect  
192.168.0.1:2838: Cannot establish TLS with [sws1.update.microsoft.com:443](http://sws1.update.microsoft.com:443) (sni:  
None): TlsException(“SSL cipher specification error: [(‘SSL routines’, ‘SSL\_CTX  
\_set\_cipher\_list’, ‘no cipher match’)]”,)  
192.168.0.1:2838: clientdisconnect

---

<div class="post-metadata">

**Author:** ![mhils](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mitmproxy.org/mhils/32/7_2.png) [@mhils](https://discourse.mitmproxy.org/u/mhils)\
**Post date:** [April 25, 2018, 2:23pm UTC](https://discourse.mitmproxy.org/t/settings-for-windows-xp-2003/1001/2 "2018-04-25T14:23:02Z")

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Hi,

Did you try using the `ciphers_server` option?

```auto
λ mitmproxy --options | rg cipher -C 1

# Set supported ciphers for client connections using OpenSSL syntax.
# Type optional str.
ciphers_client:

# Set supported ciphers for server connections using OpenSSL syntax.
# Type optional str.
ciphers_server:

```

```auto
mitmproxy --set ciphers_server=ALL

```