General :: SSH Access To Office Host Behind NAT Router
Apr 29, 2011
I would like to access the ssh port of my office linux host from home. Unfortunately the host is located behind a NAT router. So, the IP address is not publicly available. There is however access to another internet host (Server) which is unfortunately only non-root access.
-Office PC (linux, root access) behind NAT (IP not public) but full Internet access.
-Server PC (linux, no root access) static and public IP and full Internet access.
-Home PC (linux, root access) behind NAT (IP not public) but full Internet access.
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Jun 21, 2011
I can use TeamViewer to get into this remote host. It has sshd running. I would like to ssh to it. But it gives the system's IP as 192.168.xx.yy. How do I ssh into it?
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May 23, 2011
I am trying to monitorize an OpenWRT (Backfire 10.03, r23115) router from an Ubuntu server, but I am having some problems. I have installed Nrpe (2.12) on the remote host (OpenWRT), I have executed the program as a deamon (/usr/sbin/nrpe -d) but when I start the NRPE deamon, I don't get anything about NRPE executing netstat -at or ps -ef.I would need to install check_nrpe on OpenWRT to find out if NRPE is working, but I can't find any ipk package with it. Now, once in the monitoring host when I try to reach the remote host from the server:
/usr/local/nagios/libexec/check_nrpe -H ip_remote_host
I get: Connection refused by host
Even, trying with localhost:
/usr/local/nagios/libexec/check_nrpe -H localhost
I get the same error: Connection refused by host
I have installed Nagios Plugins and the check_nrpe plugin. I have edited the /etc/nrpe.cfg file:
allowed_hosts=127.0.0.1 ip_server
I don't exactly know if it is remote host's fault, monitoring host's fault or both.
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Apr 2, 2011
i need office 2007 to complete school work as openoffice doesnt support access databases. i switched to linux as i didnt have my recovery discs for windows and wanted to start afresh. my problem is that i have got word,excel,powerpoint & publisher working but access just wont load. i click the logo and it does say starting access on the bottom taskbar but then it disapears and nothing happens. ive tried google and havnt really found a answer im running ubuntu 10.10 and i have wine installed This is kind of urgent as i have a deadline fast aproaching and need access at home to progress in work
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Jul 8, 2011
I have a weird issue with source routing on a linux box.The plan goes like this:I have 2 internet providers at my office and i want to use a single router to route them both ( i don't need load balancing or failover). I just want access to either provider based on the ip i use on my pc. The first provider, let's call it RDS, is simple: i've got an RDS_IP, RDS_MASK and RDS_GW.The second provider is complicated, we'll call it INES. I have a INES_IP, INES_MASK, INES_GW and they also gave me a subnet of public ip's: ILAN_NET which i have to route myself through INES_IP.I also have a third nic with an local ip: LAN_NET and an alias for the INES subnet: ILAN_NETthe router has dhcp enabled, giving by default ip's from LAN_NET and using the default gw, RDSI have snat for the LAN_NET to go through RDS.
If i enter an ip from the ILAN_NET, instead of routing in through the INES_GW, it also goes through RDS_GW.the routing i've used for about 5 months has worked perfectly untill one day, when it just stopped. this is my setup:ip route add $RDS_MASK dev $RDS_IF src $RDS_IP table rdsip route add default via $RDS_GW table rdsip route add $INES_MASK dev $INES_IF src $INES_IP table inesip route add default via $INES_GW table inesip route add default via $RDS_GWip rule add from $RDS_IP table rdsip rule add from $INES_IP table inesip route add $LAN_NET dev $LAN_IF table rdsip route add 127.0.0.0/8 dev lo table rdsip route add $ILAN_NET dev $ILAN_IF table inesip route add 127.0.0.0/8 dev lo table ineswhat puzzles me the most is that this setup has worked, and now it doesn't .... without any changes on the router.I've tried everything save for a format/reinstall.
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Apr 22, 2011
I got 2 routers, one is on 192 and the other one is 10. There seems to be a problem when I am accessing 10 network from 192 although, when I do the opposite it works correctly.
router configured with 192 is Huawei 510
router configured with 10 is Dlink - DIR 618
I have even tried to open 2nd interface on Huawei 510 even then it doesn't seem to work.
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Aug 16, 2011
I am running a Ubuntu Linux VM using VMware Player on a Windows 7 host.
I don't want to connect directly to the network or use NAT; I need host-only networking but also need Internet access. How can I do this?
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Aug 19, 2011
I have a complicated situation due to my goals and network structure. I have in mind a potential solution, a bridge, but I do not know whether it is feasible or what hardware it will require.
The network:
My apartment community provides residents with free Internet access through an ancient T1 line. We do not have the option of other Internet providers, so having a router and modem in the home are not an option. The T1 line is split among some 24 switches, one for each building, and each switch has one port per floor. At each floor, there is a D-link WAP, and each has a separate SSID and WEP key. Additionally, they control access at the switch level using Access Control.
My goals:
I'm used to being in control of my networked environment. I like to have friends over often, and most of them have a laptop, a smart phone, or both, which makes Access Control a pain. I don't want to have to think ahead and get their MAC addresses to the IT consultant while he's here during business hours. My wife and I have 6 devices, two of which require an Ethernet connection.
I use a few applications for streaming that utilize UDP (I'm not sure if the WAPs are smart enough to even handle this) and I don't like having my traffic muddled with my neighbors.
I should note that I tried extending the network with my Airport Extreme router, which apparently only works with other Apple devices. I've also looked into WDS, but that seems to require an unlikely amount of cooperation from the IT consultant on site.
The potential solution: a Linux server that acts as a router. Ideally, it could act as a webserver for a small static site as well, but let's focus on the routing. I'd like to bridge two NICs and use masquerading (Internet Connection Sharing). The public interface would connect to the WAP using WEP. The private interface would allow up to 8 devices to connect to the server.
It seems easy enough to configure the public interface, and even to bridge the connections. What I've never done before is purchase a wireless card that can accept multiple clients. Maybe they can all do this?
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Aug 12, 2010
If there is a general NFS share in the LAN and for example this share has three files - a, b, c is there any way to restrict file access to the root user of one particular host(falcon) in the same LAN environment while the normal users from the same host(falcon) should be able to access the NFS share & files a, b, c.
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Nov 27, 2010
I cannot access/ping my Debian server. I know the IP is right (ifconfig, route and ip addr) all gave me 10.0.2.25 (route gave me 10.0.2.0).I cannot ping it from any computer in my netwerk, even when I try to ping it from my Debian itself, it gives me Destination Host Unreachable !(Wierdly, I can ping 10.0.2.2 tho).I am using virtualbox when the netwerk options 'NAT' turned on. When I look at my /etc/network/interfaces/ the last line looks like:iface eth0 inet dhcpShouldn't their be some other stuff listed?
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Feb 10, 2011
I would like to determine what computers are currently connected to my access point/router via the command line in Linux.
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Apr 8, 2010
I am running
Code:
On my laptop (HPDV7), using DHCP for network access, KDE4.
I use Network Manager to manage wired and wireless connectivity.
I also have Samba server running for connectivity to Windows machines.
My router runs DD-WRT.
How do I tell this HPDV7 system to propagate a Host Name up to the router?
In the DD-WRT status screen, I see Host Name as "*" associated with the assigned IP address.
I cannot, for example, ping my HPDV7 machine from my windows machine, I assume because the router (also providing DNS for my network) does not provide the name to address translation.
I CAN ping the IP address directly, and Samba connectivity from the Windows machine to HPDV7 works.
The file
Code:
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Dec 4, 2009
I have a router and when my Debian machine connects I get "null" as the host name. How can I get it to display the host name?
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Jun 9, 2010
I moved my server and network equipment, and now the wireless works but I cannot get my server online. I host a website, so this is kind of urgent.
I have a wireless router and can access the internet fine on my laptop. My server is wired & connected to the router. It sets up the networking properly.. ifconfig has an ip address, the default gateway is present. But I cannot ping google, or even the router. It says destination host unreachable.
So I go back to the laptop to check the router settings.. sometimes it likes to assign the server the wrong internal ip. But, I can't access the router settings either! The page (192.168.1.1) times out. Same with trying to ping the router. How can the laptop be online if it can't reach the router?
Oddly, ifconfig on my laptop reports an ip address starting with 99.233. It's always given me an internal address starting with 192.168. What's going on here? Is the router not allocating an internal ip? I use wicd to connect, if it's relevant.
We have a windows laptop that can only get a "local connection". Now it does sound like the router is forwarding directly to my laptop, instead of allocating internal ips.
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Jan 25, 2010
I have a machine running linux with 3 ethernet interfaces attached.
My Ifconfig:
My route output:
eth0 is attached to a laptop, eth1 is attached to a PC. eth2 is attached to a DSL modem, and the server is successfully acting as my internet gateway. The trouble is, my PC cannot see my laptop and vice versa. E.G. cannot ping, host seems down.
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Feb 1, 2010
I want to operate my home PC from my office. I'm using fedora 12 installed machine at home. how can i get access for my home PC?
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Nov 13, 2010
I want to know how to access the clipboard in Open Office. I want to get to the things that I have put there by cutting or copying them so that I can re-paste. how to cut and paste one item at a time (and doesn't even mention copying!)
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Jul 29, 2011
how can i make openvpn to access my entire office lan network through linux firewall.
how can i allow remote client with (private ip)to access my entire ofice network through linux firewall
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Mar 20, 2011
I created a Virtual WebServer (I used CentOS as guest) by using VirtualBox to test my website. When I typed "/sbin/ifconfig" to get "inet addr" it showed 192.168.56.101. I used a web browser from my host (Fedora 14 GNOME) to access 192.168.56.101. It was good, It displayed "Apache 2 Test Page". But I accessed 192.168.56.101/mysite it redirected to 127.0.0.1/mysite and showed error page.
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Oct 20, 2010
I have two servers, one has an empty / and the other has a subdirectory with a large number (4 gig) with many, many files. I need a way to transfer the files en masse from the server with the large number of files to the one that is essentially blank.I don't have space on the used host to simply gzip all the files. I've googled this and see that there may be some combination of tar and/or gzip that will let me do this with some sort of redirection.
I really need and example line of how this can be accomplished. If my explanation seems rather sparse, I can supply more details.
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Mar 9, 2011
I'm trying to ssh from my laptop to my desktop (both fedora 14) over a local network. I can ping my desktop and get responses, but if I ssh to it, I receive
ssh: connect to host 192.168.100.xxx port 22: No route to host
I can ssh from the desktop to itself.
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Oct 20, 2010
HOW TO GET THE IP ADDRESS OF HOST IN LINUX WITH USING OF HOST AND NSLOOKUP COMMAND and after getting the ip address how to assign it in the variable
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Aug 7, 2010
I'm using a cross-over ethernet cable to connect a Desktop Windows 7 box, and a laptop running on SUSE 11.2. I want Windows to connect to the internet via the laptop's wireless interface.
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Feb 17, 2011
i use slackware 13.1 i have apache, mysq, php - working i have a router netgear WPN824v2 - latest firmware port forwarding to my comp 192.168.1.105 port 22 i can access my ssh from my internel lan, but i cannot access it from the outside... i used [URL] to test the port and it says that is closed. i used PFportCheck Program on my other windows computer and it says that "port 22 is opened on another device!" - which is good because it's opened on this computer. also tried to changed the port on sshd_config to 6655 and 22 but it's still cannot connect...
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Jun 24, 2009
I would like to know the blocking methode In a Firewall or a Router.whether i will be done by Protocol wise, ho? or it will done through Host wise, How ?
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Apr 28, 2011
Is it possible to delete Libre Office Writer and install open office again as Libre seems to be full of bugs and unusable? I have 11.3.
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Feb 22, 2011
how to open microsoft office file in ubuntu without installing microsoft office for sure
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Aug 7, 2010
I've ran into something rather odd. I've installed wine and Office 2007. If I am to open a office 2003 (doc) or office 2007 (docx) file, it will open wine and office 2007 to edit the file. This is the desired behaviour. If I am to open an office 2003 (doc) file in firefox, openoffice will be opened. If I am to do the same with an office 2007 (docx) file, wine and office 2007 will open.where to start to get wine/office 2007 to open files from firefox?
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Mar 28, 2011
I just found out about Libre Office. I am currently using Open Office on my Netbook (ubuntu 10.10), and NeoOffice on my Macbook (OS/X 10.6.7).
QUESTION: I have some backups using these formats: .sdw, and .odt. Can Libre Office read documents saved in these (StarOffice / Open Office) formats?
FWIW: I would have preferred to use OO on both machines, but unfortunately OO never fixed a problem with printing envelopes in the Macintosh version. Hence my use of NeoOffice.
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May 20, 2011
I installed a host image in virtualbox. The virtualbox is running on ubuntu and the virtual image is also ubuntu. The ip address of the image is:
Code:
xubuntu@ubuntu-linux1:~/$ ifconfig -a
eth1 Link encap:Ethernet HWaddr 08:00:27:b2:5a:9c
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:feb2:5a9c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:44 errors:0 dropped:0 overruns:0 frame:0
TX packets:88 errors:0 dropped:0 overruns:0 carrier:0
[Code]...
the host image has an apache server running, and I want to access the server from the local machine. I can access the server with the IP address, but not with the name.
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