################## QUICK WEBSERVER ################################# serverfault.com/questions/112795/how-can-i-run-a-server-on-linux-on-port-80-as-a-normal-user
iptables -t nat -A PREROUTING -p tcp –dport 80 -j REDIRECT –to-port 8080 NOTE: The above solution is not well suited for multi-user systems, as any user can open port 8080 (or any other high port you decide to use), thus intercepting the traffic. (Credits to CesarB).
EDIT: as per comment question - to delete the above rule:
# iptables -t nat –line-numbers -n -L This will output something like:
Chain PREROUTING (policy ACCEPT) num target prot opt source destination
1 REDIRECT tcp – 0.0.0.0/0 0.0.0.0/0 tcp dpt:8080 redir ports 8088 2 REDIRECT tcp – 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 redir ports 8080 The rule you are interested in is nr. 2, so to delete it:
# iptables -t nat -D PREROUTING 2
################### END ##################
TODO markorodriguez.com/2011/09/22/a-graph-based-movie-recommender-engine/
db disapppears?
#cheatsheet
u1.rels(:incoming, :bobfather).to_other(u2)
u1.bobfather = u2 same as
destroy and delete
The destroy and delete method works like the Active Record methods.
rel = p1.rels(:friends).find{|rel| rel.end_node == p3} rel.destroy
p1.friends.find(p2).delete You can also delete the relationship object like this.
p1.friends.delete(p2)