Fix linkcheck

Author: coretl

docs/conf.py

@@ -151,7 +151,8 @@ def setup(app):
 inheritance_graph_attrs = {"rankdir": "TB"}
 
 # Ignore localhost links for periodic check that links in docs are valid
-linkcheck_ignore = [r"http://localhost:\d+/"]
+# Also ignore EPICS links as ANL blocks machine user agents
+linkcheck_ignore = [r"http://localhost:\d+/", "https://epics.anl.gov/"]
 
 # Set copy-button to ignore python and bash prompts
 # https://sphinx-copybutton.readthedocs.io/en/latest/use.html#using-regexp-prompt-identifiers

docs/tutorials/intro.rst

@@ -65,8 +65,8 @@ Environment Variables
 A number of environment variables affect the operation of channel access.  These
 can be set using the `os.environ` dictionary -- but note that these need to be
 set *before* loading the `aioca` module.  The following are documented in the
-`EPICS channel access developers manual
-<http://www.aps.anl.gov/epics/EpicsDocumentation/AppDevManuals/ChannelAccess/cadoc_4.htm>`_.
+`EPICS Channel Access Reference Manual
+<https://epics.anl.gov/base/R3-14/12-docs/CAref.html>`_.
 
 
 ``EPICS_CA_MAX_ARRAY_BYTES``