[問題] 使用JSch開SSH後再telnet..
想透過ssh到Ａ，再從Ａ telnet到Ｂ，
目前用Jsch可以順利到Ａ上進行操作，
可是到了telent Ｂ的時候，鍵入帳號，
Ａ很快的重複了一次我的帳號，然後連著問密碼，
接著完全不給我機會，就說登入錯誤..
↓以下是在eclipse console裡面顯示的資訊
--
This computer resource is private property. Unauthorized access,
misuse, and misappropriation of resources is prohibited by law.
Last login: Fri Sep 9 09:11:55 GMT 2011 from x.x.x.x on pts/0
Last login: Fri Sep 9 09:12:34 2011 from x.x.x.x
userName@Ａ:~$ telnet Ｂ.ip.address.x
telnet Ｂ.ip.address.x
Trying Ｂ.ip.address.x...
Connected to Ｂ.ip.address.x.
Escape character is '^]'.
VxWorks login: B's userName
B's userName
Password:
Login incorrect
VxWorks login:
--
用putty進行上述作業是正常的，
詭異的點在：
1.重複出現的帳號
2.不給機會輸入的密碼
google了幾天，發現原來我並不孤單XD
http://goo.gl/qGbUh 兩年前的懸案，
最後的回應(最上面一篇)不確定有沒有看懂..(擦汗)
PortForwardingL應該是像跳板那樣
開連到Ａ的ssh，然後把local port轉到Ａ
但是目前用不到跳板，只要可以在ssh裡面下telnet登入就成了
以下節錄改寫自Jsch的範例Shell.java
RF:http://www.jcraft.com/jsch/examples/Shell.java
--
public class Shell{
public static void main(String[] arg){
try{
JSch jsch=new JSch();
//jsch.setKnownHosts("/home/foo/.ssh/known_hosts");
String host=null;
//given host a eternal value
host="sshUserName@A's IP";
/* if(arg.length>0){
host=arg[0];
}
else{
host=JOptionPane.showInputDialog("Enter username@hostname",
System.getProperty("user.name")+
"@localhost");
}*/
String user=host.substring(0, host.indexOf('@'));
host=host.substring(host.indexOf('@')+1);
Session session=jsch.getSession(user, host, 22);
//skip password pressing
session.setPassword("A's SSH password");
// username and password will be given via UserInfo interface.
/*UserInfo ui=new MyUserInfo();
session.setUserInfo(ui);*/
//skip checking HostKey
session.setConfig("StrictHostKeyChecking", "no");
//session.connect();
session.connect(30000); // making a connection with timeout.
Channel channel=session.openChannel("shell");
channel.setInputStream(System.in);
// a hack for MS-DOS prompt on Windows.
/* channel.setInputStream(new FilterInputStream(System.in){
public int read(byte[] b, int off, int len)throws IOException{
return in.read(b, off, (len>1024?1024:len));
}
});*/
channel.setOutputStream(System.out);
/*
// Choose the pty-type "vt102".
((ChannelShell)channel).setPtyType("vt102");
*/
/*
// Set environment variable "LANG" as "ja_JP.eucJP".
((ChannelShell)channel).setEnv("LANG", "ja_JP.eucJP");
*/
//channel.connect();
channel.connect(3*1000);
}
catch(Exception e){
System.out.println(e);
}
}
--
本想請Ｂ開個帳號/密碼相同讓我測試，但是被回絕了T_T
只好繼續絞盡腦汁解開謎團...還望各位先進播空指點迷津
先祝各位先進中秋佳節愉快..Q_Q
→
09/10 17:52, , 1F
09/10 17:52, 1F
→
09/13 11:41, , 2F
09/13 11:41, 2F
※ 編輯: MiaShopgirl 來自: 59.124.19.42 (09/14 11:26)