Multi-port is a work-around for the six simultaneous connections per domain linmit in Chrome and WebKit. When implemented, ZoneMinder outputs each monitor’s video stream on a separate port, which Chrome considers a separate domain.<\/p>\n\n\n\n
The instructions and forum posts I found on the web were all for Debian-based distros. I run ZoneMinder on CentOS 7. When RPMFusion recently updated ZoneMinder to 1.34.0 (stable), I took the opportunity to enable multi-port mode. This is actually easier on CentOS and other RedHat-based distros than it is on Debian or Ubuntu. So here’s how. Begin by pointing your browser to: <\/p>\n\n\n\n
Enter “30000” (without quotes) in the MIN_STREAMING_PORT field, then click the SAVE button. This tells ZoneMinder to stream video each monitor on a port number equaling 30000 + the monitor number. So if your system has eight monitors, ZoneMinder serves the first monitor stream on port 30001, the second on 30002, etc. up to port 30008.<\/p>\n\n\n\n We’re not done. Apache must be configured to listen on the assigned ports. Since the upgrade to ZoneMinder 1.34.0 forces client connections via ssl we’ll be editing ssl.conf. Unlike Debian, this is the only file we need to edit for the default RPMFusion installation of ZoneMinder on CentOS 7. Prior to editing, make a back-up copy:<\/p>\n\n\n\n Next , lets edit the ssl.conf file. I detest VI’s user interface, so I use Nano: <\/p>\n\n\n\n Scroll down to the line that reads “Listen 443 https”, then add a line corresponding to each new port ZoneMinder needs to stream video, one per monitor starting with 30001. Assuming a system with eight monitors, the new lines are:<\/p>\n\n\n\n Next, find the line which reads “<VirtualHost _default_:443>” and edit to include the new streaming ports for ZoneMinder, separated by spaces. For the above example with three monitors, the new line would look like this:<\/p>\n\n\n\n Write out the file, then exit Nano. Next, test the Apache configuration:<\/p>\n\n\n\n Correct any errors, then re-test. Once all is well, restart Apache:<\/p>\n\n\n\n Then restart ZoneMinder:<\/p>\n\n\n\n Lastly, we must open the range of new ports in the firewall:<\/p>\n\n\n\n Your server should answer <success>. <\/p>\n\n\n\n Your server should answer <success>. <\/p>\n\n\n\n Your server should answer <success>. Now point your browser to:<\/p>\n\n\n\n You should see all of your monitors streaming on the Montage page. Congrats! Go get yourself a beer. <\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" Multi-port is a work-around for the six simultaneous connections per domain linmit in Chrome and WebKit. When implemented, ZoneMinder outputs each monitor’s video stream on a separate port, which Chrome considers a separate domain. The instructions and forum posts I found on the web were all for Debian-based distros. I run ZoneMinder on CentOS 7. […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[11,13,12],"class_list":["post-62","post","type-post","status-publish","format-standard","hentry","category-infotech","tag-centos-7","tag-multi-port","tag-zoneminder"],"_links":{"self":[{"href":"https:\/\/scatterpated.net\/index.php?rest_route=\/wp\/v2\/posts\/62","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scatterpated.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scatterpated.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scatterpated.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scatterpated.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=62"}],"version-history":[{"count":5,"href":"https:\/\/scatterpated.net\/index.php?rest_route=\/wp\/v2\/posts\/62\/revisions"}],"predecessor-version":[{"id":73,"href":"https:\/\/scatterpated.net\/index.php?rest_route=\/wp\/v2\/posts\/62\/revisions\/73"}],"wp:attachment":[{"href":"https:\/\/scatterpated.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=62"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scatterpated.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=62"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scatterpated.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=62"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}https:\/\/your.server.hostname\/zm\/index.php?view=options&tab=network<\/code><\/p>\n\n\n\nsudo cp \/etc\/httpd\/conf.d\/ssl.conf \/etc\/httpd\/conf.d\/ssl.conf.bak<\/code><\/p>\n\n\n\nsudo nano -w \/etc\/httpd\/conf.d\/ssl.conf<\/code><\/p>\n\n\n\nListen 30001 https
Listen 30002 https
Listen 30003 https
Listen 30004 https
Listen 30005 https
Listen 30006 https
Listen 30007 https
Listen 30008 https<\/code><\/p>\n\n\n\n<VirtualHost _default_:443 *:3001 *:30002 *:30003 *:30004 *:30005 *:30006 *:30007 *:30008><\/code><\/p>\n\n\n\nsudo apachectl -t<\/code><\/p>\n\n\n\nsudo systemctl restart httpd<\/code><\/p>\n\n\n\nsudo systemctl restart zoneminder<\/code><\/p>\n\n\n\nsudo firewall-cmd --zone=public add-port=30001-30008\/tcp<\/code><\/p>\n\n\n\nsudo firewall-cmd --zone=public add-port=30001-30008\/tcp --permanent<\/code><\/p>\n\n\n\nsudo firewall-cmd --reload<\/code><\/p>\n\n\n\nhttps:\/\/your.server.hostname\/zm\/index.php?view=montage<\/code><\/p>\n\n\n\n