FTP-Connection via Proxy

Hallo.
I have the following problem:
To Connect to an FTP-Server I have to use a proxy server - shouldn't be a problem.
But it is. At first I tried it via SystemPref. with no efforts. Still only Programms (Fetch, FileZilla) with extra proxy settings were able to connect.
So I tried it via commandline:
c207:~ $ sudo networksetup -setftpproxy "Ethernet (integriert)" ftpproxy.fem.tu-ilmenau.de 21
c207:~ $ sudo networksetup -getftpproxy "Ethernet (integriert)"
Enabled: Yes
Server: ftpproxy.fem.tu-ilmenau.de
Port: 21
Segmentation fault
Segmentation fault? what? why?
what's wrong?
(sry for my faults, my english isn't very good)

If there's a segfault, that's a bug (every time). It means that the software is trying to access areas of memory that it's not supposed to. And considering you're using sudo to cause it, potentially an exploit.
Do things work ok if you configure this through the Network Settings GUI?

Similar Messages

FTP file via proxy

Hello,
I try to upload a file via ftp while using a proxy-server.
My code is giving me the following error even when using: urlc.setDoOutput(true);
java.net.ProtocolException: cannot write to a URLConnection if doOutput=false - call setDoOutput(true)
     at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:817)
     at sun.net.www.protocol.ftp.FtpURLConnection.getOutputStream(FtpURLConnection.java:464)
     at roelftp.FTP.main(FTP.java:30)
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
public class FTP{
     public static void main (String args[]){
          System.getProperties().put("ftpProxySet","true");
          System.getProperties().put("ftpProxyHost","ftpproxy.xxx.xx");
          System.getProperties().put("ftpProxyPort","21");
          File source = new File("c:\\debuglog.log");
          BufferedInputStream bis = null;
          BufferedOutputStream bos = null;
          try {
               URL url = new URL("ftp://user:[email protected];type=i");
               URLConnection urlc = url.openConnection();
               urlc.setDoOutput(true);
               // urlc.setDoInput( true );
               bos = new BufferedOutputStream(urlc.getOutputStream());
               bis = new BufferedInputStream(new FileInputStream(source.getName()));
               int i;
               while ((i = bis.read()) != -1) {
                    bos.write(i);
          } catch (MalformedURLException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } finally {
               if (bis != null) {
                    try {
                         bis.close();
                    } catch (IOException ioe) { /* ignore */
               if (bos != null) {
                    try {
                         bos.close();
                    } catch (IOException ioe) { /* ignore */
}can please someone tell me what i am doing wrong.
Or can someone tell me how to upload to a ftp-loaction using Proxy

Hi,
Unfortunately those changes didn't work. The adapter is not able to establish a connection within the FTP server. These are the parameters I added:
-Dhttp.proxy.user=<usename>
-Dhttp.proxy.password=<userpassword>
-Dhttp.proxyHost=<proxy.domain...>
-Dhttp.proxyPort=80
-Dhttp.nonProxyHost="*domain1.com domain2com"
-Dhttps.proxy.user=<usename>
-Dhttps.proxy.password=<userpassword>
-Dhttps.proxyHost=<proxy.domain...>
-Dhttps.proxyPort=80
-Dhttps.nonProxyHost="*domain1.com domain2com"
And just in case, we tried with these other parameters at the same time.
-Dftp.proxy.user=<usename>
-Dftp.proxy.password=<userpassword>
-Dftp.proxyHost=<proxy.domain...>
-Ddftp.proxyPort=80
-Dftp.nonProxyHost="*domain1.com domain2com"
The errors in the adapter engine's log are:
Error MP: Exception caught with cause com.sap.aii.af.ra.ms.api.RecoverableException: Error when getting an FTP connection from connection pool: com.sap.aii.af.service.util.concurrent.ResourcePoolException: Unable to create new pooled resource: ConnectException: Socket connection timed out: <ftp ip address>
Error Exception caught by adapter framework: Error when getting an FTP connection from connection pool: com.sap.aii.af.service.util.concurrent.ResourcePoolException: Unable to create new pooled resource: ConnectException: Socket connection timed out: <ftp ip address>
Error Delivery of the message to the application using connection File_http://sap.com/xi/XI/System failed, due to: com.sap.aii.af.ra.ms.api.RecoverableException: Error when getting an FTP connection from connection pool: com.sap.aii.af.service.util.concurrent.ResourcePoolException: Unable to create new pooled resource: ConnectException: Socket connection timed out: <ftp ip address>
By the way, we are using PI 7.0.
Thanks in advance
Edited by: SAPIMSA . on Apr 20, 2011 4:08 PM

Cannot connect via proxy server

I need to use a proxy server in order to access university resources from off-campus. (This is set up in Firefox using Tools > Options > Advanced > Network > Settings > Automatic proxy configuration URL.) I have been doing this for two and a half years with no problems, but all of a sudden it doesn't work anymore. I have made no recent changes to my computer (Windows XP laptop) or browser settings. I get a connection has timed out / the server is taking too long to respond error message whenever I try to access a website via the university proxy server. This is only an issue for websites that require the proxy, such as databases that the university library subscribed to. I can access all public websites as usual.
I have tried Internet Explorer and get the same problem. If I disable the proxy server then my connection does not time out, I just get redirected to the university's "you are off campus and need to enable a proxy server to connect to this resource" page. University technical support tells me there is nothing wrong with the proxy server and that I am set up properly to use it, and that as far as they can tell the issue is probably with my ISP.
I am pretty sure this is indeed as Verizon issue, as I took my computer to a coffee shop and was able to access university resources via the proxy server just fine using the free wireless. I also got out my old laptop, reformatted the hard drive, reinstalled the OS (Windows XP), and had the exact same problem trying to use the proxy server via my home Verizon connection.
Incidentally, I am also unable to log in to Second Life using my home Verizon connection. I get an error message saying the server isn't responding. Again, I had no trouble with this using the coffee shop wireless.
I have spent about three hours trying to get someone from Verizon to address this problem, but keep being told I need to talk to someone else. I have now described this problem to ten different Verizon employees but have yet to reach anyone who even seems to know what a proxy server is, much less anyone who can help with this problem. If anyone out there has any suggestions, I'd much appreciate it. I cannot do much work from my apartment if I cannot access university resources.

That Trace suggests there is a firewall at play somewhere blocking ICMP Echo. Since it's timing out past the modem I do have reason to believe that the modem may be up to something. Visit http://192.168.1.1/ and check the Firewall settings. If it's set to Low or High, disable it. If you are prompted for a User/Pass, try the following:
admin/password
admin/password1
admin/admin
admin/admin1
Your Verizon Username and Password
========
The first to bring me 1Gbps Fiber for $30/m wins!

FTP connection via jsx

Hi,
Is it possible to connect to FTP via jsx?
If yes, anyone please suggest how to do that?
Thanks in advance,
Anil Yadav

(Didn't you ask this before?)
Have you tried Kasyan's http example, listed somewhere last month? Instead of sending http commands ('get', 'post') you should send ftp commands, but that ought not be a problem.
Ed. OK, I found it: Is it possible to load web content?
Searching this forum alone for 'socket' gave tons of other useful results.

Issue connecting via proxy client in SQL Developer 4.0

Hi SQL Developers,
I should have posted this earlier, as I have been using SQL Developer 4.0 for several months and noticed the issue some time ago. The environment I am connecting to uses a Windows ISA Proxy desktop client to allow traffic to some databases. I generally use the Oracle Client and OCI connections in SQL Developer. At some point during the SQL Developer releases, connectivity stopped working for certain databases behind the proxy.
The following clients connect to the database behind the proxy without issue:
SQL*Plus 11.2.0.1 64-bit
SQL Developer 4.0.0.12.84 using the SQL*Plus client and OCI
Connectivity to the database behind the proxy does not work with these versions:
SQL Developer 4.0.0.13.80 (tested with Oracle client, thin, etc.)
SQL Developer 4.0.0.13.30 (tested with Oracle client, thin, etc.)
Error Message:
An error was encountered performing the requested operation:
IO Error: The Network Adapter could not establish the connection
Vendor code 17002
Connectivity to other non-proxied databases works for all clients above. I've tried re-creating the connections, re-installing, etc. Nothing works except going back to the earlier version of SQL Developer.
Has anyone else experienced this behavior? I am trying to determine whether the proxy is stopping the client based on a signature or if the client is not routing the connection correctly.
Thanks,
Shad

I think I have found a solution.
Run the command prompt (CMD) in windows and type in the following:
setx _JAVA_OPTIONS -Djava.net.preferIPv4Stack=true
I got this from a java developer and now I'm able to connect

Connecting Via Windows FTP Service

I recently moved several sites that used Contribute to a new
webserver (Windows 2003 running IIS 6). The server uses Windows FTP
Service.
To create a FTP account I created a Windows Account and then
a Virtual FTP directory with the same name as the windows user and
pointed that virtual directory at the root of the site I want to
update with contribute. I gave the Windows account full control on
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the command line.
When connecting via contribute I get an error saying
The directory you specified does not exist. Please make sure you
entered the directory name correctly. On some servers,
file/directory names are case sensitive"
Contribute seems to be trying to change directory to a folder
with the same name as the FTP virtual directory, rather than to the
folder that the virtual directory points at.
here's the error log from contribute
Date: 11/27/2006
LocalTime: 14:07
Host: 80.76.207.49
Port:
LoginID: myFTPUserName
Path: /myFTPUserName/
Passive Enabled: false
ProxyHost: NoneContribute Alternate Rename: no
Contribute Optimized: yes
======================== Test Results
==========================
NOTE: Microsoft FTP Service has been detected. For more
information on FTP server compatibility issues, please see
http://www.macromedia.com/support/contribute/ts/documents/ftp_info.htm
Login: SUCCESS!
Changing Directory To: /myFTPUserName/ Error. The directory
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----------------------- FTP log from the last operation
> CWD /ftp
< 550 /ftp: The system cannot find the file specified.
> CWD /ftp/
< 550 /ftp: The system cannot find the file specified.
> CWD /
< 250 CWD command successful.
> RNFR ftp
< 550 ftp: The system cannot find the file specified.
> MDTM ftp
< 550 ftp: The system cannot find the file specified.

Hi!
I think the windows service is using a different systemaccount that your other application, and that account does not have rights to read the sbo-common database.
You can change the account used by your service on the service definition or in the SERVICES application of Windows.
Sir Harold

[Win7 Spotify v1] no connection behind proxy

I can login to my premium account and that's it. No music playback. Actually nothing displays on the left to playlist. You need to wait a few minutes for preferences to displays after pressing Ctrl-P
I have tried completly uninstall and clear windows registries with Revo Unistaller tool and install application back.
After observing that the option file (d:\userdata\xxxx\Application Data\Spotify\prefs) keep groving infinitely with exact copies of line entries I give up and reverted to 0.9 version and blocked auto update with help of an excelent how-to found on the forum.
BTW: Discountinuation of apps support is a *huge* downgrade for me.
Personally I don't care about friends activity, but I frequently use:
Last.fm
h1tchr
BBC Playlister
and suprise suprise musicXmatch
As for classical music records search is still a miss and hit process I rely on labels apps like:
harmonia mundi
DECCA
The Legacy Of
My understanding is that equalify doesn't support version 1.0 of Spotify.
> Equalify does not support the Spotify 1.0.x BETA client at this time.
(http://www.equalify.me/?page=download)

Same problem, unable to connect via proxy and preference screen doesn't pop up at all.
Agree with you on the friends activity feed, don't mind it but it isn't important.
I am a bit worried about the "Messages" Icon since I don't want spotify to be anything other than a tool to play music.
I definetly don't want spotify to become a swiss army knife kind of app.

Can't establish ftp connection between a Xserve and a PB

We want to use a Xserve (Mac OS X Server 10.4.8) to provide webhosting, but experience problems in establishing ftp connections using a PowerBook (Mac OS X 10.4.8).
On a WinXP-based notebook using the same Internet connection, anything works fine, just not on my PowerBook.
This is what happens when trying to establish a ftp connection (via terminal):
I type: ftp [email protected]
Returns:
220 star1.local FTP server ready.
331 Password required for user.
I provide the password, anything looks fine, get this output:
230 User starenterprise logged in.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp>
Okay, now I want to see what files are in the directory using "dir" command ("ls" brings same result). This output is shown:
502 'EPSV': command not understood.
227 Entering Passive Mode (132,78,123,92,42,115)
Now I can either press CTRL+C to escape or when waiting around one minute, then it states this:
421 Service not available, remote server timed out. Connection closed
On a ftp client software like CuteFTP Mac it shows "Can't open data connection" instead of, but result is the same.
I read through some articles I found here, but nothing compared to my problem. Please help.
I should mention one thing Apple's support told me: Since I have the same username and UID on my PowerBook as well as on the xServe, it could bring problems. However I have then added a new user to my PowerBook, result is the same. And Apple's support left helpless so far.

You said: "Not really answered, the problem persists and I now go on and let
Apple work on it again"
As a native English speaker, I must say (and doubt any would disagree) that
your statement implied: "No one here has actually helped me fix this problem,
and now I'm waiting for Apple to fix it"
Please take care to the word "again" I used; this implies that Apple has tried to solve the issue before but failed (in fact, they stated to call me back, but this is weeks ago) and so I posted this here at the discussions.
Unfortunately I only have access to the "free" support (well, free is not the right word when paying 12 cents per minute for the phone call).
And this means (at least I can speak for the German part of Apple) that operators on the phone look at their knowledgebase and sending articles by e-mail; questions going deeper are resulting in a "we call you back" answer. Sometimes they phone back, sometimes not. Sometimes they are helpful, sometimes (or should I say "in most cases") they just give hints or ask me to investing a nice amount into premium support.
Don't misunderstand me in the direction that I demand assistance from this forum - I'm more than gradeful if I get help (and rewarded this always with giving points), it has saved me several times (many, many, many times) for doing time consuming investigations and making trial-and-error experiences by myself. If I cannot get more assistance, well I have to look elsewhere and so be a bit impertinent to Apple's support. Perhaps it helps
You are right, FTP itself works correctly. It even works fine on the WinXP notebook residing at the same LAN as my PB. Therefore the issue is at the PB's firewall very likely (or a strange relationship between two firewalls which seems not to affect WinXP).
But as you indicate, it makes no sense to lower down security just for doing ftp, especially since SSH works well. However since I have no problems doing ftp sessions with other servers, I would be eager to find the reason why it refuses in this case, even this just means feeding my curiosity
So if I come to new insights, I post them here. But I feel that I'll really need your wishes for luck to solve this problem Let's see...

Java URLConnection via proxy

Hi all, I need help!
i have web server in our network, but i need get pages ONLY via proxy, not directly!
I try next(and others):
class SimpleAuthenticator extends Authenticator {
private String username, password;
public SimpleAuthenticator(String username, String password) {
this.username = username;
this.password = password;
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(
username, password.toCharArray());
Authenticator.setDefault(new SimpleAuthenticator(
"username","WRONG_PASSWORD"));
System.getProperties().put("proxySet", "true");
System.getProperties().put("proxyHost", "proxy");
System.getProperties().put("proxyPort", "3148");
URL url = new URL(urlstr);
URLConnection conn = url.openConnection();
BufferedReader in = new BufferedReader(
new InputStreamReader(
conn.getInputStream(), "windows-1251"));
but everytime i get url correctly(but in this example i should get proxy exception)! :(
I must be sure that my connection via proxy!!!!
How i can do it?

I changed my code on:
class SimpleAuthenticator extends Authenticator {
private String username, password;
public SimpleAuthenticator(String username, String password) {
this.username = username;
this.password = password;
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(
username, password.toCharArray());
Authenticator.setDefault(new SimpleAuthenticator(
"username","WRONG_PASSWORD"));
System.getProperties().put("http.proxyHost", "proxy");
System.getProperties().put("http.proxyPort", "3148");
URL url = new URL(urlstr);
URLConnection conn = url.openConnection();
BufferedReader in = new BufferedReader(
new InputStreamReader(
conn.getInputStream(), "windows-1251"));
and nothings happened, i get page correctly(no 401 Unauthorized response) :(

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If we use some software for connect to FTP (Total Commander etc.), we can not connect to anonymous and nonanonymous FTP.
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Connect to:(12.10.2006)
hostname=ftp.nai.com/CommonUpdater
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HTTP/1.1 200 OK
Copied (12.10.2006 ..) http://ftp.nai.com/CommonUpdater/ -> D:\temp...
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thanks

Does total commnder recognize http proxy gatewaying for ftp?
If so, can you capture the traffic between the total commander, the proxy, and the ftp server? (Use any available snoop commands to do this.) and paste it here?

Problem: HTTPS connections via authenticated proxy

Hi all,
we are facing a problem with the BEA implementation of the HTTPS
client/server protocol. As you might know it's possible to tunnel T3 via
HTTP/HTTPS. We are evaluating that at the moment. To make authentication for
proxy servers possible we followed the documentation and created a class
implementing the ProxyAuthenticator interface. Everything worked find until
we tried to use this together with the HTTPS-protocol. Whereas it works as
long as the proxy doesn't ask for authentication, the ProxyAuthenticator
class isn't even called in the other case. Has anyone of you already made it
work?
Your help is highly appreciated,
Tchaw!
Christoph Krüger

implementing the ProxyAuthenticator interface. Everything Think your are trying to authenticate the jdk 1.2 way,
maybe just trying it jdk 1.1 like will help.
What i found in the jsse Docu:
When accessing HTTPS servers through a web proxy, you must set the "https.proxyHost"
and "https.proxyPort" system properties to
the correct host name and port number of the web proxy.
For example, to set this property on the command line to access HTTPS servers
through the proxy host "webproxy" running at port 8080 you would use:
java -Dhttps.proxyHost=webproxy -Dhttps.proxyPort=8080
And some of my sample code for proxy auth:
System.getProperties().put( "proxySet", "true" );
System.getProperties().put( "proxyHost", "proxyurl" );
System.getProperties().put( "proxyPort", "8080" );
String authString = "userid:password";
// enter the username and password for the proxy
String auth = "Basic " + new sun.misc.BASE64Encoder().encode authString.getBytes());
URL u = new URL("http://www.bild.de/");
URLConnection connection = u.openConnection();
connection.setRequestProperty( "Proxy-Authorization", auth ); // Set up the connection
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connection.setDoOutput( true );
// request.getAuthType() // Rueckgabewert ueberpruefen
Bye, Klaas

PI ( old version called XI ) connectivity with ABAP via Proxy

Hi
Could any body please share with me the sample code for
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points will be rewarded for sure
Thanks & Regards
Meeta

The prerequisites to configure ABAP Proxy include: (landscape dependent)
The business systems should be based on SAP Web AS 6.20 and SAP Web AS 6.20 kernel patch level above 1253
You have installed the XI Add-On in each of these business systems as described in the Installation Guide SAP Exchange Infrastructure 3.0
The business systems and your central Integration Server are maintained in the System Landscape Directory (SLD).
Configuration required on the Business System:
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Technical Setting:
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·         Target Host: System name
·         Service Number: HTTP Port name
·         Path Prefix: /sap/XI/engine/?type=entry
Logon Security
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·         Client: SAP XI Integration server
·         Language: Language required
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1.       Go to Transaction SXMB_ADM
2.       Choose Edit --> Change Global Configuration Data.
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1.Category RUNTIME
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I still have problems with getting my website online. I have defined my server. Then I did the test and there was a connection via FTP. I put my files on the external server and there is a connection with the external server. But when I check to see my we

I still have problems with getting my website online. I have defined my server. Then I did the test and there was a connection via FTP. I put my files on the external server and there is a connection with the external server. But when I check to see my website online (with Firefox, Explorer, Chrome browser) I always get the message 'Forbidden, You don't have permission to access / on this server.' Can somebody help me please? I have to get my website online..Thank you!

Hello Els,
it's well known, that in all these cases you describe I'm not a friend of a detailed Troubleshooting (I see Nancy#s smile already).
To be able to be independent in all this things It is one of the reasons why I prefer an external FTP program. The difficulties with which you have to fight encourage me in this opinion, not least because we always search for experts, we don't charge a "jack of all trades".
To manage several websites or to upload my files and sometimes for the opposite way, for a necessary download from my server or to use a "a site-wide synch", I'm using FileZilla. It simply looks easier for me to keep track of all operations precisely and generate or reflect easily the desired tree structure.
Above all, FileZilla has a feature (translation from my German FileZilla) called "compare file list". Here it's possible to use file size or modification time as a criterion. There is also the possibility to "hide identical files", so that only these files which you want to redact remain visible.
And even if it means you have to install a new program, I am convinced that there is an advantage. Here is the link to get it and where you can read informations about how it works:
http://filezilla-project.org/ and http://wiki.filezilla-project.org/Tutorial#Using_the_site_manager
Mac: Mac OS X (Use: Show additional download options)
http://filezilla-project.org/download.php
Of course, you also need all the access data to reach your server and for MIME issues, you should contact your web host/provider.
Good luck!
Hans-Günter
P.S.
Since I use two screens, the whole thing became even more comfortable.

I cannot connect to the internet, I get a message that "connot connect to the proxy server. My firefox will not connect, I can connect via aol.

cannot connect to internet via firefox, can connect via aol, firefox was conneting before, now I get "connot connect to proxy setting"

You can find the connection settings in Tools > Options > Advanced : Network : Connection
If you do not need to use a proxy to connect to internet then select "No Proxy" if the default "Use the system proxy settings" setting doesn't work.
See "Firefox connection settings":
* https://support.mozilla.com/kb/Firefox+cannot+load+websites+but+other+programs+can

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Event log shows "Fully-Qualified-User-Name = INFRA\vpnfamily". INFRA is AD NetBIOS name. 2851 router's domain name is "family.com"
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