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<font face="Arial">Annoyingly, one of our upstream cache_peers
requires a fixed string to be prepended to client usernames.<br>
<br>
I'm aware the login= option for cache_peer allows substituting *
with client provided username and appending a fixed string to
this.<br>
<br>
Is there a way to achieve something similar if we need to prepend
rather than append a string (perhaps a clever ACL/external_auth
trick we could use to modify client usernames destined for this
peer)?<br>
<br>
Thanks for any suggestions.<br>
<br>
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