Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: SSH/Firewall issue
Operating Systems Solaris SSH/Firewall issue Post 302403655 by tawnos42 on Saturday 13th of March 2010 03:18:58 PM
Old 03-13-2010
SSH/Firewall issue
I am a complete UNIX neophyte with the unenviable task of trying to pseudo manage two SUN boxes with an unknown past. I was not responsible for setting them up, anything that was done on them previously, and have no means of figuring out anything that was done to them. So far I have changed the IPs and enabled root access for SSH. I also changed the IP in /etc/hosts associated with one of them from its previous public IP to its current IP on the local (private) network. Otherwise I have done nothing.

The machines are named Sun1 and Sun2 and are both on the same network. Everything works fine on Sun1. I can ssh into it from anywhere. For Sun2, however, I can only ssh into it from a client that is on the same network but not from a client on another network. For now, the user has been ssh'ing into Sun1 and going from there to Sun2. This works but is awkward.

I first suspected a firewall was active on Sun2 but ipfstat shows nothing and there are no rules defined in /etc/ipf/ipf.conf. As far far as I can tell ipf is not even running anyway. Is there some way I can tell for sure if a firewall is running somewhere on Sun2? Is there some other ssh setting that would allow only LAN access? I also compared /etc/ssh/sshd_config between Sun1 and Sun2 and could not find any differences.
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

ssh thru firewall

Hi a question about ssh. im setting up a script to scp files to a remote machine outside our firewall, the script needs to be password free using keys. The firewall allows ssh trafic outside the company network but does not let ssh back into the network. this seems to be affecting the... (3 Replies)
Discussion started by: thangorn
3 Replies

2. UNIX for Advanced & Expert Users

linux firewall / dns issue

I have set up a linux (red hat 9) box as my main internet router. I am also running a DNS server on it. What are the rules i have to implement to allow DNS queries through the firewall from outside so that the outside world can see my domains? (1 Reply)
Discussion started by: frankkahle
1 Replies

3. Solaris

How to open SSH port on firewall?

Hi, So that potential responders will have an idea of what they're dealing with let me say that while I am a UNIX newbie I have been in IT for over 10 years. We have several SUN boxes running ver 5 of the OS that have been sitting dormant for some time as they were part of a now defunct... (3 Replies)
Discussion started by: pjewett
3 Replies

4. UNIX for Advanced & Expert Users

vpnclient firewall policy mismatch issue

Hi all, I have installed vpnclient 4.8.00 (0490) on my centOS GNU/Linux OS. I configured the profiles (using the same profile pcf files which was on my WinXp system) I can connect to CISCO VPN from my WinXP machine but with the same profile (.pcf) on Linux am getting "Firewall Policy... (1 Reply)
Discussion started by: zing_foru
1 Replies

5. IP Networking

NAT Forwarding Issue Endian and Vyatta Firewall

I've experienced this same issue with both the Endian Firewall Appliance and a Vyatta Firewall Appliance. Conversely, it works with a Draytek Firewall/Router. I am trying to forward port 80 traffic to my internal web server which is located on the /24 subnet. I have an external static IP which... (0 Replies)
Discussion started by: mboudro
0 Replies

6. Shell Programming and Scripting

SSH issue

I want to run a program on remote server by using unauthenticated ssh. It works when I ssh from command line however, it does not work when I try to invoke ssh script with other application. Any clue? (6 Replies)
Discussion started by: sam101
6 Replies

7. Solaris

SSH issue

Hi guys. I just installed Solaris 10 and want to enable ssh on it So that i can remotely use it from another location. I read a post on this forum an it was written that SSH is enabled by default. I did a ps -ef | grep ssh and nothing showed up meaning that it isnt running. I even tried... (11 Replies)
Discussion started by: Junaid Subhani
11 Replies

8. UNIX for Advanced & Expert Users

Ssh issue

Hi All, I am trying to connect between two system , I am facing the issue with -SSH-t-l userid systemname exit ( this is the syntax) It suppose to ask for password , but it throws the error as mentioned below Error is received disconnect from system and remote login for the... (1 Reply)
Discussion started by: sudhainit
1 Replies

9. Linux

Linux and SCO ppp, firewall issue?

I' m playng a little retrocomputing. I have setup a virtual machine with SCO unix(3.2v4.2) on qemu The machine start, the novell2000 card(ne2k_pci,ne2k_isa) unfortunately not,probably driver issue. So I try the slirp with this procedure On SCO netconfig add chain..sl ..etc On... (2 Replies)
Discussion started by: Linusolaradm1
2 Replies

LEARN ABOUT PLAN9

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
All times are GMT -4. The time now is 08:31 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy