Hey, thanks for the detailed info. Is there any way we can have a chat other than mail communication in case needed.
-Garima Jain On Jun 21, 2016 11:48 PM, "elijah baley" <e_ba...@outlook.com> wrote: > The topic is too wide to cover in a short mail message - I suggest you > look into the code of Apache MINA SSHD ( > https://github.com/apache/mina-sshd) especially the tests where you will > find many examples how to achieve anything you like. However, here are the > basics (for client side): > - Initialize an SshClient instance- Use that instance to open a session to > your server- Provide username/password or private key and authenticate the > session- Once you have the session authenticated there are many choices > open to you: > * Open a "shell" channel and run interactive commands * Open an > "exec" channel and run a single command * Obtain an SftpClient instance > and access remote files * Obtain an ScpClient instance and > upload/download files * Create a local/remote tunnel * Clean up/close > the resources you opened once no longer needed (note: the SshClient should > be stopped/closed once your application no longer needs to access SSH > servers - usually on application exit...). > All this and more using the session you just obtained, or (if you > like/need) create a new session for each usage - there are advatanges and > disadvantages to each approach. There are many details to take into > account, but if you don't have any special requirements then the defaults > you get should be good enough. The vast majority of the APIs have Javadoc > that should help make sense of the options - again, I recommend you look at > how the tests are coded - there are very good chances you will find a > suitable example similar to what you want to achieve. > The same applies for the server side, although it is a bit tricker...Hope > this gives you a good lead how to proceed. > > > Date: Tue, 21 Jun 2016 22:45:57 +0530 > > Subject: RE: Partial Disabling of port 22 using apache-mina SSHD > > From: jain.garim...@gmail.com > > To: dev@mina.apache.org > > > > Hey, > > > > What shell commands can be executed and how? Or how to provide tunnel? > > Can you provide sample code for the same? > > > > Any methods from sftp class? > > > > -Garima Jain > > On Jun 21, 2016 10:02 PM, "elijah baley" <e_ba...@outlook.com> wrote: > > > > > No, SFTP is not a protocol that runs on a specific port it is a > > > sub-protocol (actually a subsystem) of SSH. FYI, SSH enables opening > > > multiple channels on the same session. You can run shell commands (what > > > many mistakenly call SSH) SFTP and SCP as well as tunnels concurrently > on > > > the same SSH session. The port is always 22 (SSH) for SFTP and SCP > (and any > > > other channel - e.g. PROXY, SOCKS, etc...).. > > > > > > > From: jain.garim...@gmail.com > > > > Date: Tue, 21 Jun 2016 11:42:58 +0530 > > > > Subject: Re: Partial Disabling of port 22 using apache-mina SSHD > > > > To: dev@mina.apache.org > > > > > > > > Can I keep the port open for sftp and close for ssh? > > > > > > > > -Garima Jain. > > > > > > > > On Mon, Jun 20, 2016 at 10:33 PM, garima jain < > jain.garim...@gmail.com> > > > > wrote: > > > > > > > > > Thanks. Will use that. > > > > > > > > > > -Garima Jain > > > > > On Jun 20, 2016 10:31 PM, "Ashish" <paliwalash...@gmail.com> > wrote: > > > > > > > > > >> On Mon, Jun 20, 2016 at 9:43 AM, garima jain < > jain.garim...@gmail.com > > > > > > > > >> wrote: > > > > >> > Can we use black list/whitelist feature? > > > > >> > > > > >> This is what you should use. > > > > >> > > > > >> > > > > > >> > -Garima Jain > > > > >> > On Jun 20, 2016 10:12 PM, "elijah baley" <e_ba...@outlook.com> > > > wrote: > > > > >> > > > > > >> >> There are many options - depending on the actual setup: > > > > >> >> - You can move SSHD to a non-standard port on all interfaces - > > > easy to > > > > >> do > > > > >> >> when setting up the server - just call "setPort" on the > SshServer > > > > >> instance- > > > > >> >> You can bind SSHD to a specific interface (e.g., 127.0.0.1)om > port > > > 22 > > > > >> and > > > > >> >> bind SFTP to the public interface on port 22 - easy to do just > call > > > > >> >> "setAddress" (or something to that effect) on the SshServer > > > instance > > > > >> >> I could think of more exotic options - e.g. similar to sslh, > using > > > > >> >> HAPROXY, etc., etc. > > > > >> >> > From: jain.garim...@gmail.com > > > > >> >> > Date: Mon, 20 Jun 2016 12:10:26 +0530 > > > > >> >> > Subject: Re: Partial Disabling of port 22 using apache-mina > SSHD > > > > >> >> > To: dev@mina.apache.org > > > > >> >> > > > > > >> >> > Hi elijah, > > > > >> >> > > > > > >> >> > The requirement is to block port 22 for SSH and accept SFTP > > > > >> connections > > > > >> >> on > > > > >> >> > Port 22. Is there a class/method that can help us achieve the > > > aim? > > > > >> >> > > > > > >> >> > -Garima Jain. > > > > >> >> > > > > > >> >> > On Fri, Jun 17, 2016 at 3:27 PM, elijah baley < > > > e_ba...@outlook.com> > > > > >> >> wrote: > > > > >> >> > > > > > >> >> > > Is there some reason your code cannot examine the incoming > > > client > > > > >> >> address > > > > >> >> > > and reject it if it does not match some specified criteria > > > (e.g., > > > > >> mask, > > > > >> >> > > network, closed group of IPs - whatever...) ? > > > > >> >> > > > > > > >> >> > > > From: jain.garim...@gmail.com > > > > >> >> > > > Date: Fri, 17 Jun 2016 14:50:51 +0530 > > > > >> >> > > > Subject: Partial Disabling of port 22 using apache-mina > SSHD > > > > >> >> > > > To: dev@mina.apache.org > > > > >> >> > > > > > > > >> >> > > > Hi, > > > > >> >> > > > > > > > >> >> > > > > > > > >> >> > > > > > > > >> >> > > > We are using com.springsource.org.apache.mina-1.0.2.jar > in > > > our > > > > >> >> product. > > > > >> >> > > > The requirement is to disable port 22 for all incoming > > > traffic > > > > >> over > > > > >> >> SSH > > > > >> >> > > but > > > > >> >> > > > the same port is required to communicate with few IP’s > over > > > 22. > > > > >> Is > > > > >> >> there > > > > >> >> > > a > > > > >> >> > > > way to handle selective port blocking? > > > > >> >> > > > > > > > >> >> > > > > > > > >> >> > > > -Garima Jain. > > > > >> >> > > > > > > >> >> > > > > > > >> >> > > > > >> > > > > >> > > > > >> > > > > >> -- > > > > >> thanks > > > > >> ashish > > > > >> > > > > >> Blog: http://www.ashishpaliwal.com/blog > > > > >> My Photo Galleries: http://www.pbase.com/ashishpaliwal > > > > >> > > > > > > > > >
