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https://issues.apache.org/jira/browse/MAPREDUCE-2858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126941#comment-13126941
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Robert Joseph Evans commented on MAPREDUCE-2858:
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@Luke
I must be doing something wrong with the base tag, because it is not working
for me, and I am not really sure how it would work. The issue I am having is
the following.
The page has a reference to the following image
{code}
<img src="/static/hadoop-st.png">
{code}
I am not sure what I would insert into a base tag that would cause it to load
from
{code}http://myproxy.com:port/proxy/orighost:origport/static/hadoop-st.png{code}
it always wants to load from
{code}http://myproxy.com:port/static/hadoop-st.png{code} no matter what I put
in for base. This is on both Chrome and Firefox.
>From what I have read BASE is used to take a moved page and point the
>references back to the original location. At least that is how the google
>cache uses it. The href is supposed to point to a fully qualified URI that is
>used in resolving partial URIs as if that were the page that we were currently
>on.
Could you give me a more concrete example of what the base tag should look like
to support this? The only thing that I can come up with to do this is
{code}<base href="http://orighost:origport/path/to/page"/>{code}
but that would bypass the proxy for all links, which seems broken to me.
> MRv2 WebApp Security
> --------------------
>
> Key: MAPREDUCE-2858
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2858
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: applicationmaster, mrv2, security
> Affects Versions: 0.23.0
> Reporter: Luke Lu
> Assignee: Luke Lu
> Priority: Blocker
> Fix For: 0.23.0
>
>
> In MRv2, while the system servers (ResourceManager (RM), NodeManager (NM) and
> NameNode (NN)) run as "trusted"
> system users, the application masters (AM) run as users who submit the
> application. While this offers great flexibility
> to run multiple version of mapreduce frameworks (including their UI) on the
> same Hadoop cluster, it has significant
> implication for the security of webapps (Please do not discuss company
> specific vulnerabilities here).
> Requirements:
> # Secure authentication for AM (for app/job level ACLs).
> # Webapp security should be optional via site configuration.
> # Support existing pluggable single sign on mechanisms.
> # Should not require per app/user configuration for deployment.
> # Should not require special site-wide DNS configuration for deployment.
> This the top jira for webapp security. A design doc/notes of threat-modeling
> and counter measures will be posted on the wiki.
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