Yes we need that documented, http://stackoverflow.com/questions/8924102/restricting-ip-addresses-for-jetty-and-solr
Of course Firewall is a must for extremely strong environments / large corporations, DMZ, and etc; IPTables is the simplest solution if you run Linux; my vendor 1and1.com provides firewall functionality too - but I wouldn’t trust it: what if local at 1and1.com servers (in the same rack for example) can bypass this firewall? Having option to configure Jetty minimizes dependencies. In real production I’d use all possible options: firewall(s) + iptable + Jetty config + DMZ(s) -- Fuad Efendi (416) 993-2060 http://www.tokenizer.ca Search Relevancy, Recommender Systems On November 4, 2016 at 9:28:21 AM, David Smiley (david.w.smi...@gmail.com) wrote: I was just researching how to secure Solr by IP address and I finally figured it out. Perhaps this might go in the ref guide but I'd like to share it here anyhow. The scenario is where only "localhost" should have full unfettered access to Solr, whereas everyone else (notably web clients) can only access some whitelisted paths. This setup is intended for a single instance of Solr (not a member of a cluster); the particular config below would probably need adaptations for a cluster of Solr instances. The technique here uses a utility with Jetty called IPAccessHandler -- http://download.eclipse.org/jetty/stable-9/apidocs/org/eclipse/jetty/server/handler/IPAccessHandler.html For reasons I don't know (and I did search), it was recently deprecated and there's another InetAccessHandler (not in Solr's current version of Jetty) but it doesn't support constraints incorporating paths, so it's a non-option for my needs. First, Java must be told to insist on it's IPv4 stack. This is because Jetty's IPAccessHandler simply doesn't support IPv6 IP matching; it throws NPEs in my experience. In recent versions of Solr, this can be easily done just by adding -Djava.net.preferIPv4Stack=true at the Solr start invocation. Alternatively put it into SOLR_OPTS perhaps in solr.in.sh. Edit server/etc/jetty.xml, and replace the line mentioning ContextHandlerCollection with this: <New id="IPAccessHandler" class="org.eclipse.jetty.server.handler.IPAccessHandler"> <Set name="white"> <Array type="String"> <Item>127.0.0.1</Item> <Item>-.-.-.-|/solr/techproducts/select</Item> </Array> </Set> <Set name="whiteListByPath">false</Set> <Set name="handler"> <New id="Contexts" class="org.eclipse.jetty.server.handler.ContextHandlerCollection"/> </Set> </New> This mechanism wraps ContextHandlerCollection (which ultimately serves Solr) with this handler that adds the constraints. These constraints above allow localhost to do anything; other IP addresses can only access /solr/techproducts/select. That line could be duplicated for other white-listed paths -- I recommend creating request handlers for your use, possibly with invariants to further constraint what someone can do. note: I originally tried inserting the IPAccessHandler in server/contexts/solr-jetty-context.xml but found that there's a bug in IPAccessHanlder that fails to consider when HttpServletRequest.getPathInfo is null. And it wound up letting everything through (if I recall). But I like it up in server.xml anyway as it intercepts everything ~ David -- Lucene/Solr Search Committer, Consultant, Developer, Author, Speaker LinkedIn: http://linkedin.com/in/davidwsmiley | Book: http://www.solrenterprisesearchserver.com
