Networking :: Can't Login To The Port On The Local Machine?
Feb 28, 2010
I have a reverse ssh connection established from a remote machine to my local machine - it is established with autossh from the remote machine - I know it is connecting because I can see the two ssh processes on the local machine - and, when I kill the two ssh processes, two new ssh processes are immediately established. But I cannot login to the port on the local machine. I have tried everything - it simply refuses to connect. This remote machine is miles away and not readily accessible.
Code:
ssh -p 7766 -vvv user[at_sign]192.168.1.108
OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
[Code]...
I'm wondering if there is some way I could utilize netcat or socat to "tap into" this connection from my local machine??? (My ultimate goal would be to get to a shell on the remote machine.)
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May 26, 2010
i have a problem........ How to redirect local http port to remote ip ddress(192.168.10.64) using iptables..my destro is Centos 5.3 my rule is this iptables -t nat -A PREROUTING -s 0/0 -d <my local ip> -p tcp --dport 80 -j DNAT --to-destination 192.168.10.64
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Apr 25, 2009
How can i redirect data received on a port to another port located in a different machine? Can i do this using IPTABLES ?
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Jul 9, 2010
Here's my (admittedly complex) situation:
I set up a dynamic DNS address for my home network. Let's call it [URL]. Then I set up one of my machines with a bind9 DNS server and pointed my router's DNS setting to it. I did this so that I could resolve awesome.server.com from machines inside my network and have them correctly find my server. Then I set up a second machine to serve web pages using [URL]. I did this by forwarding port 9200 on my router to port 80 on that machine. This works, but of course, it only works from outside my network.
What is the best way to get [URL] to work from inside my network?
I've tried setting up the iptables on my server to forward that port, but it just times out. I used these rules that I found by searching the internet:
Code:
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 9200 -j DNAT --to 192.168.0.300:80
iptables -A INPUT -p tcp -m state --state NEW --dport 9200 -i eth1 -j ACCEPT
However, those rules might be failing because they are intended to forward ports requested from outside the network. I must admit, this iptables stuff is way, way over my head. Is there a different method that I must use to make it work inside my network? Or is there a better way besides iptables?
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May 24, 2009
I have problem with port based routing for local traffic. I can't use trick with iptables -t mangle, ip route table 1, ip rule fwmark table 1 because it works only with forwarded packets. I can't even use patch-o-matic because it's obsolete. And xtables-addons doesn't contain support for "-j ROUTE" yet.
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Jan 7, 2010
A lot of activity is happening on our local server and I want to know which port is getting the most used and which daemon is using the port. I think it will be some modification of netstat command.
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Mar 31, 2009
I tried to authenticate using ntlm proxy authentication service and my computer could not retrive the IP address. Currently I am using fedora cammbridge
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Jul 25, 2010
I have a few ubuntu machines in my house, 1 mythtv backend server with other services as well, 2 mythbuntu frontends boxes hooked up to tv's etc. I wanted to push the audio from my laptop out over pulseaudio to the machine connected to the AV equipment.
I could not see any other pulseaudio sinks in padevchooser... this lead me down the road to investigating avahi.
When I run avahi-browse on my laptop (hydrogen) it only returns the services published from itself:
Code:
$ avahi-browse -ta
+ wlan0 IPv4 byron's remote desktop on hydrogen VNC Remote Access local
+ wlan0 IPv4 hydrogen [00:1b:77:71:97:76] Workstation
[Code]....
My laptop has vmware on it, and I've changed the vmnet intefaces to not support multicast so avahi ignores them. but I'm still at a loss to why my laptop can't see the other machines on my network with avahi (mdns).
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Mar 29, 2009
I am using squid proxy server in my Linux machine for caching. Now i want run my squid in transparent mode not set proxy settings in browsers.Like squid is running port 3128. If we redirect the port 80 packets to port 3128, looping is occurred.How to avoid looping?
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Jan 12, 2010
I can telnet (while on the actual machine) using
Quote:
telnet localhost 25
When I try and use the local machine's ip
Quote:
telnet 192.168.100.9 25
I get
Quote:
Trying 192.168.100.9...
telnet: Unable to connect to remote host: Connection refused
[Code].....
This last one is strange as I the IP looks odd.
What I am doing wrong, and how do I fix it. After much surfing many mosts say that telnet is not used anymore but I want to use it to test my smtp server.
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Dec 18, 2010
i want to know mac address of a particular ip but the problem is that i am unable to ping that ip but that ip is being used by someone in my local network that i know from my proxy logs. i want to know the mac address of that ip,
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Jun 3, 2010
How to install kerberos on a local machine...?
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May 26, 2011
I just getting back to working with linux. I'm having a problem with what seems to be an iptables thing or something easier than that, Enough here is the question I can get apache to run on the local machine by either going to http://localhost or by the ipaddress on the CentOS machine. But for some reason when I try to take a look on my laptop (on the same network) and try to go to it using the IP address is doesn't go. I can ssh from my laptops but it will not open the apache startup page.
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Jul 30, 2010
I m using the pc as gateway....i have two NICs:1) 10.6.15.254 ---> for internal network 10.6.15.02) 10.6.0.115 -----> for out side world I can ping and ssh any out side machine but when i try to ping or ssh any machine in the 10.6.15.0 network it says host unreachable.... i can ping and ssh gateway i.e. 10.6.15.254 and 10.6.0.115 but not the client machine in the 10.6.15.0 network from out side world even i flush iptable rules i can not access any client machine i m using ubuntu 10.04 as operating system..
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Jul 27, 2011
I am a newbie trying to enable virtual hosting and run it on a local machine without fqdn. I checked the http://9.9.9.92/ (my IP address) site and saw my (default) page. I would like to virtuly host a asdf.com If virtualy hosting is setup properly - how do I access the new setup? Just type http://asdf.com ? or is there more to it?
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Jul 18, 2010
I'm trying to setup iptables to send web (tcp?) traffic through Squid and Privoxy transparently (to save having to setup everything per browser and hoping they honor their settings). I know I have done this before but I can't find the old config nor remember the exact options needed to do this.What I am wanting specificially is for Privoxy to grab the data as it leaves the browser, do its thing then pass it on to Squid before sending it down the line, then doing the same incoming (Privoxy -> Squid -> requesting app).
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Feb 19, 2011
I have had a look at the the information on the ubuntu forum about this but am having trouble getting the server to do what i want it to do.
I have a VPS running ubuntu 9.10 and i am trying to set it up to redirect port 25 to a remote machine via a VPN connection (remote machine connected via VPN)
i have tried setting this up in the firewall using webmin but it is not working.
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Feb 25, 2010
I want to transfer the audio file on linux machine using Ethernet port, is it possible?
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Dec 26, 2009
Is there any way to redirect a remote Linux machine mplayer output audio to local one?
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Jul 29, 2009
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Nov 10, 2010
Possible Duplicate: SSH asks for password, even with public key installed [URL]...I am trying to login from machine A to machine B with password-less SSH login as described in the above link.I have followed all the steps but still the password is being prompted for.How to diagnose this and resolve the issue
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Apr 14, 2009
I am using VNC to login to remote machine (vncserver). My question is; How can I login to remote machine (vncserver) through VNC client, without having to login to vncserver first physical. For better explanation here is an example: If john wnat to login to vncserver remotely first he has to login the vncserver physically then he can login remotely.
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May 20, 2011
In addition to 2 "desktop" machines, I recently set up an Ubuntu Server with Apache2, but when I try to access my www.homepage from a machine locally connected to the same router (via both wired & wireless interfaces), I am directed to the Login page of the router, not to the www.homepage. Yet, when I access the www.homepage from elsewhere, my www.homepage is accessible.
I can browse to my www.homepage by entering the local IP address into browsers on both local machines, so I know the machines are talking to each other. Just not letting me get in via normal internet browsing channels.
Server: Ubuntu 11.04
Webserver: Apache2
Router: D-Link DIR-615
IP Address of: 192.168.0.110 (reserved on router, static on server)
[Code]....
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Feb 18, 2010
I want to do a simple port redirect, i.e. whatever comes trough whatever interface on port AAAA will get redirected to port BBBBI thought that iptables -t nat -I PREROUTING --source 0/0 --destination 0/0 -p tcp --dport AAAA -j REDIRECT --to-ports BBBBhowever it doesn't work, e.g. nc -v -w2 -z localhost AAAA gives:
nc: connect to localhost port AAAA (tcp) failed: Connection refused
while
nc -v -w2 -z localhost BBBB
[code]....
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Jul 23, 2010
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May 31, 2010
Ubunu 9.1 and I would like to set up my machine so that when i type a domain name into another browser on my local network, I will get the apache server. I currently access the pages i have on the ubuntu server by typing the ip address into another machine on the network, I would like to type in a DNS type of name instead.
Ultimately, I would like to access this machine from outside of my network over the Internet, and would appreciate insight on how to do this, too.
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Feb 2, 2011
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And then have the other user run:
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This is not working on my ubuntu (10.10). I am guessing that there is an additional level of Xauth restrictions, but I cannot find out how to get past them. Both users are local to the machine. I would like to not use sux or gdsu as both require you to enter the password and I would like this to be seemless. I am aware of the security concerns and believe that I have mitigated them.
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I changed the default port under etc/apache2/ports.conf and now I cannot connect to my server under my local network.
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Jun 5, 2011
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Jun 3, 2010
How to install kerberos on a local machine ?
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