Internet Related/Filtering/Firewall Thread, FTP - Pulling my Hair Out! in Technical; We use EMBC and I'm trying to connect to an FTP server hosting a website. For some reason I can ...
19th May 2011, 10:49 PM #1
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19th May 2011, 10:55 PM #2
sounds really daft but is it locked down by IP address at all?? I found ours was locked by IP until I requested it gets locked by time.
19th May 2011, 10:58 PM #3
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This is exactly my thinking... is there a rule at EMBC that blocks FTP connections unless we specify an unblock. Just to be clear, the FTP server is hosted externally on the internet. I can understand if the FTP server was hosted internally and I was trying to access it from home.
I've bypassed the ISA server too. I'm connecting using this proxy server ----- proxy.embc.uk.com:80
I want to ask the lady the same question, scared she'd hang up on me for wasting her time.
19th May 2011, 11:03 PM #4
is it only at work you cant access it? If so, ask them to set a new proxy up to test...because we have ours numbered here in central beds as such
10.15.48.1:80 - public libraries backup
10.15.48.2:80 - public libraries
10.15.48.3:80 - nursery school
10.15.48.4:80 - lower school
10.15.48.5:80 - middle school
10.15.48.6:80 - upper school
10.15.48.7:80 - teachers
10.15.48.8:80 - technicians
I couldnt get through on teachers (and neither could many schools) so we requested collaboratively that we get a new proxy set up for technicians, which allows much more lenient rules...obviously stuff like porn and gambling are blocked etc, but we can pretty much do what we need to now for files, FTPs etc whereas before we couldnt. Perhaps thats worth a go?
19th May 2011, 11:08 PM #5
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Sweet, thanks I'll give it ago tomorrow!
19th May 2011, 11:09 PM #6
do bare in mind that mine is central beds and through E2BN, not EMBC ...but if enough of you ask they should get their backsides into gear.
19th May 2011, 11:11 PM #7
Try telnetting to the ftp, if it doesn't connect you can assume EMBC firewall or ACL has blocked your pc from accessing port 25.
19th May 2011, 11:13 PM #8
Port 25?? thats not right...port 21 is FTP Command, and Port 20 is FTP data, and port 1023 is the client access port, so if anything those ports would be blocked if you cant telnet..
19th May 2011, 11:24 PM #9
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Hah TIL that Ftp had 2 ports... 1 for command 1 for data I assumed it was all through 1 hole! Right well to "test" EMBC's Theory that it's my end I just setup 2 machines, 1 server 1 client. They connect instantly internally to each other. I setup another FTP server at home and I can't connect to that from within work. So EMBC must have Port 20 or 21 blocked then?
Thanks for the suggestions!
19th May 2011, 11:27 PM #10
it could be one or the other, or even both. Get them to unblock one at a time, then both. Also what does TIL stand for? lol
19th May 2011, 11:48 PM #11
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T.I.L. (Today I Learned)
Often used as a space saver on websites such as Reddit or DIGG when writing the titles of links to interesting things the submitter has learned that day.
TIL that a meter is the distance light travels in 299,792,458ths of a second.
20th May 2011, 12:00 AM #12
Sorry I meant port 21, shouldn't be posting while watching Celebrity Juice Difficult to concentrate
20th May 2011, 12:37 AM #13
Pretty sure they are internal only to E2BN, in the same way EMBC runs its own internal address space ... to bleed between RBCs you have to use public IPs unless it is part of particular JANET / NEN services
Originally Posted by nephilim
20th May 2011, 12:42 AM #14
I know thats what I meant, do not confuse our proxies with theirs. however if enough people ask for a seperate proxy for technicians and network admins, they might get their backside into gear and set one up
20th May 2011, 01:03 AM #15
Nope. In EMBC land there does not need to be a separate proxy. The proxy can be configured to used different filter categories for different groups based on internal IP ranges. The problem here is not so much the proxy, but the firewall ... which is a different matter.
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