Hello,
I am working on an App and am trying to return a page with the status of
a host (up/down). The host IP addresses are taken from a database and
then pinged using ping.rb. The code works if typed in irb but when
done from inside Rails, it always returns false.
The code is called from list.rhtml by
<h2><%=h firewall.host_up(firewall.ip4_addr) %></h2>
host_up is in the model rb script as
def host_up(ip4_addr)
require "ping.rb"
ping_obj =
Ping.pingecho(ip4_addr,timeout=5,service="echo")
if ping_obj == false
is_up = "Down"
end
if ping_obj == true
is_up = "UP"
end
ret_value ="device " + ip4_addr + " is "+ is_up
return ret_value
end
The code seems to execute (if a put a breakpoint call in host_up, it
gets called) just does not return a true when the host is up. Using
tcpdump, I can see that is does not ever actually try to send out packets.
Thanks for any ideas or suggestions you might have.
Ray
--
Ray Ward
Ward Technologies, LLC
ray-9itETZtfRrKHdZQakrT3ElaTQe2KTcn/@public.gmane.org
630 544-2999
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> I am working on an App and am trying to return a page with the status of > a host (up/down). The host IP addresses are taken from a database and > then pinged using ping.rb. The code works if typed in irb but when > done from inside Rails, it always returns false.- Are you running irb on the same machine as Rails? - Any change you are inside a FreeBSD jail on the Rails machine? - Are there any error messages you can get out of the Ping library? - What about using script/console? Does that fail? - Are the users running irb and Rails different? Or the same? - What does ping.rb look like? Any chance it''s making a system call to the OS ping (which might fail if Rails user has no shell say)? -p> > The code is called from list.rhtml by > <h2><%=h firewall.host_up(firewall.ip4_addr) %></h2> > > > host_up is in the model rb script as > def host_up(ip4_addr) > require "ping.rb" > ping_obj = Ping.pingecho(ip4_addr,timeout=5,service="echo") > if ping_obj == false > is_up = "Down" > end > if ping_obj == true > is_up = "UP" > end > ret_value ="device " + ip4_addr + " is "+ is_up > return ret_value > end > > > The code seems to execute (if a put a breakpoint call in host_up, it > gets called) just does not return a true when the host is up. Using > tcpdump, I can see that is does not ever actually try to send out packets. > > Thanks for any ideas or suggestions you might have. > Ray > > -- > Ray Ward > Ward Technologies, LLC > ray-9itETZtfRrKHdZQakrT3ElaTQe2KTcn/@public.gmane.org > 630 544-2999 > > > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
-irb was run from the same machine with the same user. -I thought of the jail idea since my development box is an OpenBSD machine but I moved it to a windows box and it did the same thing (running from irb still worked). -no errors that I can see. -Just tried, it works from script/console -users are the same - ping.rb calls socket. I did not look into socket. Philip Hallstrom wrote:>> I am working on an App and am trying to return a page with the status of >> a host (up/down). The host IP addresses are taken from a database and >> then pinged using ping.rb. The code works if typed in irb but when >> done from inside Rails, it always returns false. >> > > - Are you running irb on the same machine as Rails? > - Any change you are inside a FreeBSD jail on the Rails machine? > - Are there any error messages you can get out of the Ping library? > - What about using script/console? Does that fail? > - Are the users running irb and Rails different? Or the same? > - What does ping.rb look like? Any chance it''s making a system call to > the OS ping (which might fail if Rails user has no shell say)? > > -p > > >> The code is called from list.rhtml by >> <h2><%=h firewall.host_up(firewall.ip4_addr) %></h2> >> >> >> host_up is in the model rb script as >> def host_up(ip4_addr) >> require "ping.rb" >> ping_obj = Ping.pingecho(ip4_addr,timeout=5,service="echo") >> if ping_obj == false >> is_up = "Down" >> end >> if ping_obj == true >> is_up = "UP" >> end >> ret_value ="device " + ip4_addr + " is "+ is_up >> return ret_value >> end >> >> >> The code seems to execute (if a put a breakpoint call in host_up, it >> gets called) just does not return a true when the host is up. Using >> tcpdump, I can see that is does not ever actually try to send out packets. >> >> Thanks for any ideas or suggestions you might have. >> Ray >> >> -- >> Ray Ward >> Ward Technologies, LLC >> ray-9itETZtfRrKHdZQakrT3ElaTQe2KTcn/@public.gmane.org >> 630 544-2999 >> >> >> > > > > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ >-- Ray Ward Ward Technologies, LLC ray-9itETZtfRrKHdZQakrT3ElaTQe2KTcn/@public.gmane.org 630 544-2999 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---