SFTP, FTP, HTTP Connection Refused through clients

I have an off-site storage server that I've been using for a while. All of a sudden the past couple of weeks while trying to connect through Transmit or Cyberduck all I get is "connection refused" whenever I attempt to connect through SFTP, FTP, or HTTP. The IT guys for the server state it's fine but when I try to ping my ports on my mac my port 22 and 21 aren't visible.
What in the heck is going on?

Here is the log output for:
ssh -v -v -v [email protected]
What does ssh_connect: needpriv 0 mean?
Brens-Mac-Pro:~ xxxx$ ssh -v -v -v [email protected]
OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to [email protected] [188.xxx.237.xx] port 22.
debug1: connect to address 188.xxx.237.xx port 22: Connection refused
ssh: connect to host [email protected] port 22: Connection refused

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====================
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There are many things wrong with your code. Learn the HTTP protocol and you'll know what I mean.
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1. You don't know HTTP
2. You don't seem to know Java
3. You don't seem to understand basic programming logic

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= = = = = = = =
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= = = = = = = =
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</detail>]; nested exception is:
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null

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at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
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package Test;
import java.io.;
import java.net.;
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hi brucechapman,
ran the NetTest program, got the following exception:
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     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(Unknown Source)
     at com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(Unknown Source)
     at sun.net.NetworkClient.doConnect(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
     at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
     at java.net.URL.openStream(Unknown Source)
     at Test.NetTest.main(NetTest.java:40)
NetTest.java:40 -- InputStream is = url.openStream(); at this ling throwing exception.
For the following program, i have added the argument -Djavax.net.ssl.trustStore=cacerts
i have exported the certificate from IE and added to the keystore.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.security.Security;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
public class Communicator {
public static void main(String[] args) {
try {
int port = 34443;
     String strReq = "xml content ";
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
SSLSocket socket = (SSLSocket) factory.createSocket("jyoti-win2k8-32", port);
//Writer out = new OutputStreamWriter(socket.getOutputStream());
//out.write("GET http://" + "hostname" + "/ HTTP 1.1\r\n");
// out.write("\r\n");
//out.write(strReq);
//out.flush();
OutputStreamWriter wr = null;
try{
     wr = new OutputStreamWriter(socket.getOutputStream());
     catch(Exception e){
          e.printStackTrace();
     System.out.println("got output stream");
     try{
     wr.write(strReq);
     //System.out.println("response code : "+conn.getResponseCode());
     System.out.println("written");
     wr.flush();
     catch(IOException e){
          e.printStackTrace();
InputStreamReader is = new InputStreamReader(socket.getInputStream(),"UTF8") ;
     BufferedReader rd = new BufferedReader(is);
     String line;int count=0;
     System.out.println("rd "+rd);
     while ((line = rd.readLine()) != null) {
          System.out.println("line "+line );
          System.out.println(count++);
          // Process line...
     System.out.println(count);
rd.close();
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
int c;
while ((c = in.read()) != -1) {
System.out.write(c);
//out.close();
in.close();
socket.close();
} catch(IOException ex) {
ex.printStackTrace();
Exception :
javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
     at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.handleException(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.handleException(Unknown Source)
     at com.sun.net.ssl.internal.ssl.AppOutputStream.write(Unknown Source)
     at sun.nio.cs.StreamEncoder.writeBytes(Unknown Source)
     at sun.nio.cs.StreamEncoder.implFlushBuffer(Unknown Source)
     at sun.nio.cs.StreamEncoder.implFlush(Unknown Source)
     at sun.nio.cs.StreamEncoder.flush(Unknown Source)
     at java.io.OutputStreamWriter.flush(Unknown Source)
     at Test.Communicator.main(Communicator.java:55)
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
     at sun.security.validator.PKIXValidator.<init>(Unknown Source)
     at sun.security.validator.Validator.getInstance(Unknown Source)
     at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.getValidator(Unknown Source)
     at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
     at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
     at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source)
     at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source)
     at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source)
     at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(Unknown Source)
     ... 7 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
     at java.security.cert.PKIXParameters.setTrustAnchors(Unknown Source)
     at java.security.cert.PKIXParameters.<init>(Unknown Source)
     at java.security.cert.PKIXBuilderParameters.<init>(Unknown Source)
     ... 19 more
java.net.SocketException: Socket is closed
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.getInputStream(Unknown Source)
     at Test.Communicator.main(Communicator.java:66)
please help me and provide me suggestion/solution. how to get rid off this trustanchor paramater exception
what is it actualy?
Thanks in advance.

Use of Hostname for connectivity through client in 10g

Hi,
Can anyone please clarify the use of host name and DB name? I mean currently we are using Oracle 8.0.5 where clients are connecting to Database using the hostname for e.g "Dataserver"... but now we are planning to migrate our DB to 10.2.0.1 where in testing phase when we created database with same name i.e "Dataserver" oracle doesnt allow this as giving error that DB name cannot b same of host name... now i want to know is there any possibility in 10g that we can use host name for connecting to DB through clients?
this question requires urgent attention as we need to migrate our database as early as possible.
thanks

while connecting to sql i m using:
SQL> connect sharjeel/a@dar-dev-002
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
output of lsnrctl stat:
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 26-SEP-2011 17:15:18
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Produ
ction
Start Date 26-SEP-2011 14:52:33
Uptime 0 days 2 hr. 22 min. 48 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
Listener Log File D:\oracle\product\10.2.0\db_1\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dar-dev-002.AKHST.org)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orcl_XPT" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfully

Rmi client throws Connection Refused exception

My Rmi client throws a Connection Refused exception when i try to run it on remote machine (in this case i run it on my virtualbox macine).
The virtualbox machine network is in NAT mode (host machine ip should be 10.0.2.2).
When rmi client starts get registry instance and print in standar output:
RegistryImpl_Stub[UnicastRef2 [liveRef: [endpoint:[//10.0.2.2/:1099,util,RmiInstances$1@1275d39](remote),objId:[0:0:0, 0]]]]But when rmi client trys to use any of remote methods it throws Connection Refused, but it's to strange because the Connection Refused has 127.0.1.1 as ip.
java.rmi.ConnectException: Connection refused to host: 127.0.1.1; ....In client RmiInstances code (this class contains all remote implementations) is:
public class RmiInstances {
    private static RmiInstances instance;
    private IUserManage userManage;
    private IAnalysis analysis;
    private IPacientManage pacientManage;
    private IInsuranceManage insuranceManage;
    private Config config;
    private RmiInstances()
            throws RemoteException, NotBoundException, IOException {
        this.config = Config.getInstance();
        Registry registry = LocateRegistry.getRegistry(config.getServerUrl()+"/",
                1099, new RMIClientSocketFactory() {
            @Override
            public Socket createSocket(String host, int port) throws IOException {
                try {
                    URI uri = new URI(config.getServerUrl()+
                            ":"+config.getServerPort());
                    return new Socket(uri.getHost(), uri.getPort());
                } catch (URISyntaxException ex) {
                    ex.printStackTrace();
                    return null;
        System.out.println(registry);
        userManage = (IUserManage)registry.lookup("RUserManage");
        analysis = (IAnalysis)registry.lookup("RAnalysis");
        pacientManage = (IPacientManage)registry.lookup("RPacientManage");
        insuranceManage = (IInsuranceManage)registry.lookup("RInsuranceManage");
...And server code is the next:
public static void main(String[] args) {
     System.out.println("GNULab Server " + VERSION + " starting...");
     System.setProperty("java.rmi.server.codebase",
          "file:/home/zarovich/workspace/labserver/bin");
     try {
         // Loading config
         System.out.println("Loading config...");
         Config config = Config.getInstance();
         // inicializando rmi registry
         Registry registry;
         if (config.isSsl()) {
          registry = LocateRegistry.createRegistry(
               config.getServerPort(), new RmiSSLClient(),
               new RmiSSLServer());
         } else
          registry = LocateRegistry
               .createRegistry(config.getServerPort());
         // instanciando implementaciones
         RAnalysis rAnalysis = new RAnalysis();
         RInsuranceManage rInsuranceManage = new RInsuranceManage();
         RPacientManage rPacientManage = new RPacientManage();
         RUserManage rUserManage = new RUserManage();
         // registrando interfaz rmi
         registry.rebind("RAnalysis", (IAnalysis) UnicastRemoteObject.exportObject(rAnalysis, 0));
         registry.rebind("RInsuranceManage", (IInsuranceManage) UnicastRemoteObject.exportObject(rInsuranceManage, 0));
         registry.rebind("RPacientManage", (IPacientManage) UnicastRemoteObject.exportObject(rPacientManage, 0));
         registry.rebind("RUserManage", (IUserManage) UnicastRemoteObject.exportObject(rUserManage, 0));
         System.out.println("GNULab Server " + VERSION + " listening ...");
         System.out.println("Registry instance: " + registry.toString());
     } catch (RemoteException e) {
         e.printStackTrace();
        * catch (MalformedURLException e) { e.printStackTrace(); }
        */catch (IOException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
     } catch (JDOMException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
...

I'm solved my problem.
I just need run my server with -Djava.rmi.serverhost=10.0.2.2 and my client running on my virtualbox machine works!

Connection refused: proxy: HTTP: attempt to connect to failed [error] ap_proxy_connect_backend disabling worker

Hi all,
I'm investigating cause of a wedged wiki this morning. The MacMini (10.7.5) was working well for the last year but we're not sure when it gave up the ghost.
I've already applied the fixes detailed at Mac OS X v10.5, Mac OS X Server v10.5: Web, Mail, Wiki, Personal Web Sharing, Parental Controls services may not start after restoring a Time Machine backup but it has't helped.
The error we see when we visit the top level of the server is:
Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
Apache/2.2.22 (Unix) PHP/5.3.15 with Suhosin-Patch mod_ssl/2.2.22 OpenSSL/0.9.8r DAV/2 Server at sacmini.local Port 80
The message in the httpd error logs is:
Connection refused: proxy: HTTP: attempt to connect to failed [error] ap_proxy_connect_backend disabling worker
Let me know if you have any ideas. Thank you.
--Athonia

Thanks for the reply.
So, there were some Ruby related log file entries. Do these have any meaning to you? I'm checking to see what collabcored2 does exactly.
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygem s/custom_require.rb:31:in `require'
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /usr/share/collabd/coreclient/config/environment.rb:11
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygem s/custom_require.rb:31:in `gem_original_require'
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygem s/custom_require.rb:31:in `require'
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /usr/share/collabd/coreclient/config.ru:13
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /Library/Ruby/Gems/1.8/gems/rack-1.2.1/lib/rack/builder.rb:46:in `instance_eval'
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /Library/Ruby/Gems/1.8/gems/rack-1.2.1/lib/rack/builder.rb:46:in `initialize'
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /usr/share/collabd/coreclient/config.ru:1:in `new'
May 7 14:22:33 sacmini com.apple.collabcored2[22106]:
from /usr/share/collabd/coreclient/config.ru:1
May 7 14:22:33 sacmini com.apple.launchd[1] (com.apple.collabcored2[22106]): Exited with code: 1
May 7 14:22:33 sacmini com.apple.launchd[1] (com.apple.collabcored2): Throttling respawn: Will start in 9 seconds

SFTP, FTP, HTTP Connection Refused through clients

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