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»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »Firewalls

Author	Topic: Firewalls (11 messages, Page 1 of 1)
squirlhntr -Interested User- Posts: 62 Joined: Feb 12, 2005	Posted: May 1, 2005 06:10 PM Msg. 1 of 11 Anyone have any information on how IQConenct interacts with firewalls? Some firewalls I have used have not had any effects on IQConnect, but some of them will allow me to log in but seemingly not allow IQConnect to retrieve quote data. It's causing me quite a bit of consternation ;)
skunk -DTN Evangelist- Posts: 249 Joined: May 7, 2004	Posted: May 1, 2005 06:42 PM Msg. 2 of 11 The very first question in the most recent version of the FAQ is the following: Q: I don't get any data with my sample apps, Is this a firewall issue? ANS: It could very well be. If you have a firewall running, you will need to open the following port ranges in your firewall for IQFeed to be able to connect to its servers Ports inclusive: 5000-5050 and 60000-60050
squirlhntr -Interested User- Posts: 62 Joined: Feb 12, 2005	Posted: May 1, 2005 08:40 PM Msg. 3 of 11 thanks. i have another question... when I call RegisterClientApp, it launches IQConnect.exe, correct? is that the program that opens the server port that I am connecting to to retrieve the data? so all data goes through IQConnect in some fashion? I ask because there are firewalls that will ignore blocking certain applications by name, so iI need to know the name of what process is actually contacting the outside world for the data...
DTN_Jay_Froscheiser -VP, Product Operations- Posts: 1746 Joined: May 3, 2004 DTN IQFeed/DTN.IQ/DTN NxCore	Posted: May 2, 2005 08:36 AM Msg. 4 of 11 The name may come up a couple different ways. Luckily, all software firewalls I know of will prompt the user when an unknown name comes up. I have seen "client data server" and "iqconnect". Jay Froscheiser DTN Market Access, LLC.
squirlhntr -Interested User- Posts: 62 Joined: Feb 12, 2005	Posted: May 2, 2005 12:27 PM Msg. 5 of 11 Thanks. I have another question related to this that maybe you could help me with. I have a firewall that I do not control. But I can use arbitrary protocols by loading a SSL VPN (Aventail Connect, in this case) and telling the VPN to pass through data from certain programs, thus seemingly 'bypassing' the firewall. So I tell Aventail Connect to pass through data from IqConnect.exe and python.exe (as I am writing in python)... then I call RegisterClientApp, and IQConnect logs me into the server just fine (it will not work however if I don't set up Aventail Connect properly). However, when I attempt to connect to localhost:9100, I cannot retrieve any data. Is there something I need to be aware of in how IQConnect retrieves it's data? Does it pass it's client responsibilities off to another program? I know it uses particular ports, but that doesn't do anything for me as I don't have control over the firewall. /edit P.S. I am forcing IQConnect to go through a proxy server. Which seems to be fine for the login, but not for the data? Edited by squirlhntr on May 2, 2005 at 01:00 PM
DTN_Jay_Froscheiser -VP, Product Operations- Posts: 1746 Joined: May 3, 2004 DTN IQFeed/DTN.IQ/DTN NxCore	Posted: May 2, 2005 03:21 PM Msg. 6 of 11 IQFeed will not work through a proxy server because the client obtains a dynamic list of IP addresses back that it connects to. Jay Froscheiser DTN Market Access, LLC.
squirlhntr -Interested User- Posts: 62 Joined: Feb 12, 2005	Posted: May 2, 2005 03:44 PM Msg. 7 of 11 Quote: IQFeed will not work through a proxy server because the client obtains a dynamic list of IP addresses back that it connects to. --- Original message by DTN_Jay_Froscheiser on May 2, 2005 03:21 PM I'm not sure I follow. When you get a minute, could you explain why this would keep IQConnect from getting data through a proxy? I realize you have good business reasons for not allowing proxy support--else people would leech your data. BUT at the same time all major companies who would ever use your (and mine) software will probably only use it through a proxy system so... it all seems to be a rather significant limit on your service. I guess you don't plan on a pure sockets-based approach anytime in the future?
DTN_Jay_Froscheiser -VP, Product Operations- Posts: 1746 Joined: May 3, 2004 DTN IQFeed/DTN.IQ/DTN NxCore	Posted: May 3, 2005 08:35 AM Msg. 8 of 11 Actually, proxy servers have all but gone away in most places. The reason it isn't supported is because IQFeed talks direct to the IP's assigned. There is no machanism to in IQFeed to tell it to point to a proxy which will forward the requests. This isn't to say we may provide support for proxies in the future, but it hasn't been a big enough issue to get full attention and to put it high on the priority list. I can assure you that our products are used on MANY major companies. Brokerages, energy companies, trading floors, etc all use our products and SOCKS or other proxy support hasn't been a large barrier to using our products. It may be possible to use a software based SOCKS client such as one from Hummingbird (I tried this about 5 years ago and had it mostly working). In this case, you need to map a much of IP addresses and ports on your local machine for forwarding. Unfortunately, we change IPs and ports fairly often for redundancy, so, even if you can get it to work, it may be a hassle to keep up working as changes are made in our system. Hopefully this explanation helps understand the "what and why". Jay Froscheiser DTN Market Access, LLC.
squirlhntr -Interested User- Posts: 62 Joined: Feb 12, 2005	Posted: May 4, 2005 10:15 AM Msg. 9 of 11 I understand that IQConnect does not support proxies. However I can simulate proxy support for it by wrapping it in a VPN and 'spoofing' addresses. I'm thinking of Aventail Connect here. If I use IQConnect without Aventail Connect on and configured, I cannot even log in to IQFeed. However, if I do enable Aventail Connect, I connect to IQFeed just fine through the proxy. However, I cannot retrieve any data. Any suggestions? Why would the login server work but not the data feed? Thanks, Patrick
DTN_Jay_Froscheiser -VP, Product Operations- Posts: 1746 Joined: May 3, 2004 DTN IQFeed/DTN.IQ/DTN NxCore	Posted: May 4, 2005 10:26 AM Msg. 10 of 11 I don't know how Aventail works, but my guess is you need to tell it somehow what each IP and port go to. Unfortunately, the IP's and ports change with each login. Not knowing anything about Aventail is going to make it difficult to help you. Hopefully someone else on the board will have some information that may be of use. Jay Froscheiser DTN Market Access, LLC.
squirlhntr -Interested User- Posts: 62 Joined: Feb 12, 2005	Posted: Jul 5, 2005 09:45 AM Msg. 11 of 11 Just a followup in case anyone else uses SOCKS... I never got Aventail Connect to handle IQFeed.... I was able to get it to let IQConnect to log me in, but was never able to request data from the local TCP/IP socket. I switched out Aventail for a similar program, Permeo, and it works just fine! ;) If you have to use SOCKS to tunnel through a network, give it a shot. I am quite pleased.