Ubuntu Servers :: Intranet - Insure That No One From The "outside" Will Ever Be Able To Connect
Feb 2, 2010
I want to set up what I assume is called an intranet server. Initially it'll just serve html web pages to users on my local Ethernet. BTW, right now users get their ip addresses from a router - 192.168.xxx.xxx - "private" IP's. This router is then connected to a modem which then connects to the internet, so there's the usual ip masquerade... I assume I'll install Ubuntu server on a dedicated PC connected to the local Ethernet.
My question is I want to insure that no one from the "outside" will ever be able to connect to the server, it's only for locals. Also locals should be able to connect to the internet and also should be able to connect to this local server if they want. What is the simplest way to implement? Are my simple assumptions correct?
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Nov 29, 2010
I have client workstations on separate intra-net LANs. Both intra-nets use network address translation (NAT) or masquerading on the LAN. The private network IP address should not matter (unless it does). When LAN-1 connects with an exterior web site, it will leave a record of the ISP public IP address. A LAN-2 connection could read this record, but how would it know how to reach into LAN-1? How can a network application running on a LAN-1 workstation find and connect with a network application running on a LAN-2 workstation? There is a utility called "woof" where one workstation presents a limited feature web browser for access by other hosts on the same LAN.
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Sep 2, 2010
Installed 10.04 as a LAMP. I want to be able to create a new intranet site for testing purposes.
When creating a new site with in apache, what is the recommendation for the folder? With in the var/www? Everything appears to want a domain address and since its local only, what do I use as a domain?
I have webmin installed and I would think creating a virutual server would be my first step, but I am getting hung up on the domain address.
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Feb 23, 2011
i run ubuntu 10.10 on a 3.5ghz quad core, 4gb ram.
I had the idea to make an inranet for me and my housemates.... i have an extensive video collection mostly in .avi and .mkv. i would like to make a page which diplays this video and lets you select from a playlist/browse the directory, howeve i didn't really want to have to recode all the video to flv.
is there a way i can do with VLC? i have looked about and the vlcwebplayer just looks like another flash player... does it support VLC recoding on the fly? or am i missing *something*
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Mar 14, 2011
I want to setup an intranet mail server as a project. I tried to go through various forums but could not get a satisfactory model. My sceme of things is as follows:The server a virtual machine is after a router which has a built in dhcp server. Prefer to use sendmail but postfix ok client machines should be able to access the mail on evolution/thunderbird or web access using squirrelmail.Mail will not be relayed to anybody outside the intranet.
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May 29, 2010
I tried to install vsftpd on my server and while the installation went fine, I can't run
Code:
restart vsftpd
As I the get error
Code:
restart: Unable to connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory Though I'm able to restart the service with
sudo /etc/init.d/vsftpd restart with a warning telling me to use the service utility. Not only that, but despite the port being open it won't allow me to log in, it just hangs, and I have local users enabled (I've used the default .conf file). Does dbus not come installed in 10.04, and if I did install it would it make a difference for restarting the service? Are there further steps needed not available in the tutorial on the Ubuntu Server Guide for 10.04 to enabling local user authentication? -edit- Figured it out, dbus wasn't installed, vsftpd is working fine now.
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Apr 26, 2011
I install and configure the vncserver following and reading 1000papers, but all of this present the same problem; when i try to connect to my vncserver,recive this mesage: unable connect to socket: No route to host (113) The OS version is Fedora Core 14 and tigervnc-server i try different solutions including:Allow TCP connection modifing files /etc/gdm/custom.conf and /usr/share/gdm/gdm.chemas Disable SELinux removing iptables Here follow the vncserver configuration:
[code].....
The ip address of the vncserver is correct because i can do ssh on it. Where or what can i do?
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Feb 18, 2011
I am using Squeeze and all appears OK at first... I have a DHCP lease, PING to router works, apache servering fine in and outside the network, Epiphany seems to connects to default debian.org only, BUT I cannot connect to any other websites and apt will not connect to any servers. I installed once, tried to fix problem, gave up and reinstalled and still have the same problem.
I unistalled Network Manager thinking that was the problem, but still the same issue. Is there a default firewall blocking certain connections or am I missing something I'm supposed to know about? I installed some non-free firmware in the beginning of install and all worked... and I connected fine when downloading packages during install.
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Dec 16, 2010
Problem with my Internet connection. I can't connect to the update servers. I don't know why. It's a brand new installation, not a week old yet. I can't install the support for restricted media for example. The servers won't refresh in YaST. It tells me it can't download the repomd.xml.asc.
The other problem is that some servers on the web won't load for me either.
For example, I get most of my local news from The Toronto Star, and I can't connect to it's website at all.
I can from Windows (I dual boot) but not SUSE. I don't think its a problem limited to that one website either. I am able to connect to most websites though.
This is the result of zypper repos -d
Code:
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Jul 7, 2010
I want to do is make an old computer of mine that I use for web development be accessible to anyone within my LAN only.
so in a nutshell i don't want the world wide web to be able to access this server since I use it for development work only and i do most of my actual development work on another system since most of the applications i use requires windows.
I know you can block incoming traffic to all IPs or add individual IPs to allow in, but how can i make the firewall only accept incoming traffic from those within my LAN network?
if you wish to know what I'm using to configure my firewall, I'm using firestarter on this server
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Jul 15, 2011
i've installed a PPTP VPN and have it configured under webmin. fine.i've connected from a remote laptop to the VPN and can access the local netowrk with it. greati really want to be able to access the outside world whilst tunneled through the VPN but clearly i need to do something else?
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Dec 29, 2010
I've been running with DSL and Linksys router, connecting servers and printer via hard-wire Ethernet. The router doesn't like to talk to things without a network connection (the only thing I can have is a USB wireless modem until I get HughesNet or some other satellite service). What I'm wondering is what I need (a bridge? a switch?) to plug stuff in and have them talk to each other nicely.
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Feb 19, 2010
I am using Ubuntu on a Windows network.
One of the computers have apache server (working), it has 192.168.1.6 IP, and the name of the computer on the network is "servidor"
I can't access from ubuntu, if I type http://servidor or 192.168.1.6, it goes to [URL], but I can access shared folders, just the host intranet server I can't
I have vmware with windows xp, and I can access http://servidor from there, but not from Firefox in Ubuntu.
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Dec 29, 2010
I've recently installed Ubuntu server 10.10 on an older Pentium 3 computer to test the capabilities of Ubuntu and to have more experience with the OS. During my install, the network card, a Kingston KNE100TX, was successfully detected however auto configuration failed. This was tried against a Windows 2k3 DHCP server as well as a Cradlepoint router. As expected, since no DHCP server provided an address, the routing table is empty.
I retried configuring the Kingston card with a static IP address. This time as expected, ifconfig showed the IP address that was assigned and the route table had been populated. Attempting to ping my gateway, 192.168.17.1, resulted in Destination Host Unreachable. The same results were encountered when the configuration was changed to a different network.
[Code]...
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Mar 11, 2011
(ubuntu10.10)i want to use use the Intranet and Extranet at the sanme time at school,how to set ?my Intranet ipv4 :10.62.14.79 255.255.255.0 gw 10.62.14.1my Extranet is DSL(use DHCP)my problem is when i use one of them,i must break the other.
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May 1, 2009
I am using Fedora 10. I have a network design like that:
WinServer --- (r1)router(r0) --- (eth1)LinuxPC(eth0) --- intranetPC
All netmask is 255.255.255.0
WinServer network is 192.168.1.0/24
intranetPC network is 10.10.0.0/24, gateway is IP of the LinuxPC(eth0): 10.10.0.2
Router:
r1 -IP: 192.168.1.253
r2 -IP: 10.10.0.253
LinuxPC
eth0 -IP: 10.10.0.2
eth1
-IP: 10.10.0.40
-GW: 10.10.0.253
I search in Internet several days to find how to configure the LinuxPC to a gateway. The LinuxPC can ping and connect the WinServer and intranetPC correctly, but the intranetPC cannot ping and connect the WinServer network.
I used the webmin to configure the Gateway.
I used the iptables to set allow all connect, than
iptables -t nat -A POSTROUTING -eth1 -j MASQUERADE
iptables -A FORWARD -i eth0 -j ACCEPT
echo 1 > /proc/sys/net/ipv4/ip_forward
In "/etc/sysconfig/network" add "FORWARD_IPV4=true"
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Jul 28, 2010
There are a lot of boxes in this network and we have intranet site. If I connect computer directly to the network with everything set to automatic. I can see this intranet site. But I've installed a switch. One box has two net adapters and it takes internet, intranet and all from one adapter, the other adapter is connected to switch. Now, I have connected to this switch two computers. Internet is working fine. But I cannot get to this intranet site from these boxes. I can get into shares of other computers in the network but they cannot see me. Everything is hidden behind the gateway. But that's not the problem for me. All I want is to get to this intranet website. How can I do it?.
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Aug 17, 2011
I work for an organization with a few hundred employees. We need a very simple CMS for posting basic organizational documentation such has step-by-step instructions, as well as pdf and MS Office documents.We would prefer something that would organize content hierarchically, so we can structure the info into departments and functional areas. A MySQL or similar database is preferred, but flat file is okay as long as it does not limit content/structure too much.We would probably have about 15 to 20 content authors/editors. No workflow, authentication (except authors/editors) or secure content areas are required.
The only limitation would be that the content could only be accessed from a particular range of IPs. (I assume that would be set in Apache.)
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Jun 16, 2011
I plan to host a Server. I want to know which is the best for Visualization.
Cent OS = > Xen
VMware = > open source.
i need to host a intranet in my company. they r going use java web based.which way is the best solution improve the I/0 request speed.
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Dec 9, 2008
I am trying to setup a simple DNS Server which forwards all connections to ISP DNS except for my intranet webserver.E.g. intranet.com should be retrieved from 192.168.XXX.XXX...I have read tons of forums etc., but it seems that i am stupid. How to do that? Even with GUI its ok.
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Jun 4, 2010
I have been trying to set up an old pIII 700Mhz PC as a local intranet server to run some PHP code.
I have got debian installed setup ssh since it is a headless computer mounted a usb hard drive to store the web page remapped apache2 to use the /mnt/sda1/html/ folder and tested that php scripts are running
now what i can't seem to get working is the following:
ftp access to /mnt/sda1/html so I can upload files from my pc on the network and
phpmyadmin so i can easily manipulat mySQL databases.
after reading [URL] I typed in #apt-get install phpmyadmin
it downloads a bunch of stuff and says it is installing it but when i do the next step in the instructions go to
http://192.168.0.100/phpmyadmin/
I get a 404 Not Found error.
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Oct 15, 2009
I can not open the corporate intranet portal, runnnig on windows server 2008 with domain users. In Centos I could login just fine - firefox/konqueror just prompted me for my NTLM windows domain username and password - I typed those in and browers sucessfully loggem me in and I could surf the corporate portal. Note that NTLM authentication is configured as a fallback from kerberos authentication (so told me our portal admin)
However, in Fedora11 when I try to open the corporate (intra(not inter)net) portal, browsers just give me "Bad Request (Invalid Hostname)" error instead of prompting me for my domain username/password. I'm logged in on my F11 box as a local (not domain) user - as I did also previously on Centos Box.
I disabled SELinux, I disabled the firewall but still no luck. Not being able to open the corporate portal is a major showstopper for me, as I can not access many applications hosted there.
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May 23, 2010
Currently I am using Ubuntu but I am having a huge problem with it right now and it may force me to abandon my linux hunger and get Win 7. I am hoping that Fedora may be different enough that it will solve my problem if I switch. I have my linux box (ubuntu 9.10) that connects to the internet through a wireless usb dongle. and it works perfectly.I have network shares that allow me to share content with my media player (modded xbox) in a different location of the house. I added a tv to my office and connected another xbox to it. This connection to my linux machine is made through a switch. This wired intranet connection works fine. I can see all of my shares.
The problem I have is when I am using the wired intranet connection and I want to surf the web. I cant. I have to disconnect the wired connection to do so. IS Fedora different enough to to allow me to be able to do so? I am a linux newbie and learning more everyday and I love it.
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Jun 16, 2010
I have a windows PC and a fedora 13 linux box. When connecting to the linux from windows, I'd like to type the hostname instead of the ip address. Apart from setting the hostname, what do I have to do to publish my hostname on the intranet. (set up a nameserver?)
Though hostname works on the linux box, even this fails: nslookup myhostname Also I'm a newbie. I've tried installing some packages like samba and dhcp, using yum...;service chkconfig... and then checking whether nslookup or nmblookup work with my hostname. But it's just guesswork. Under system -> Administration there is no network option. but it is not clear what package is needed to install it, or whether such a thing is supported in fedora 13. I did try system-config-network, but it has few options none of which pertain to hostname resolution. The fedora manuals dont seem to cover it, at least in recognizable plainspeak to me.
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Jan 12, 2011
I used the command: scp filename.c user@172.100.102.187:/user/pradeep
Here I want to copy file to 172.100.102.187 in /user/pradeep but it gives a
error: scp: /user/pradeep: No such file or directory
What is the command to copy a file from one system to another?
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Nov 16, 2010
have installed redhat linux 7.3, selected to install all options, but after system reboots, it comes to a black screen requesting a intranet login username/password. I have the machine connected to my home network via cat5 for dsl. I have reinstall many times using different setups that I think would have resolved my issue.
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Jan 10, 2011
I've got 2 computers plugged into an "ethernet broadband router" sitting behind a DSL modem. I'd like to be able to send mail from one of the 2 computers to the other, preferably without going through the DSL modem, and preferably without assigning host names (if that's possible).
I've installed/configured sendmail (and sendmail-cf and m4) and am attempting babystep tests of the configuration by sending mail to a user on the originating computer.
So I can send email to root@localhost and it is received on the local host.
But if I try to send it to root@127.0.0.1, it bounces back like so:
This seems to be pretty fundamental (the localhost has an address of 127.0.0.1). Shouldn't I be able to use the IP address in place of the associated name?
Here's my hosts file /etc/hosts:
Code:
And here's my resolv.conf file, although I wouldn't expect that to come into play since I'm using IP addresses instead of names /etc/resolv.conf:
Code:
Here's my /etc/mail/access file:
Code:
I did verify that sendmail was configured to listen in on more than just the loopback address in /etc/mail/sendmail.mc, but that doesn't seem to be relevant until I can get email through to 127.0.0.1.
Which files do I need to create/touch to get this to work?
And can it be done without talking to the DSL modem?
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Feb 10, 2011
i have configured the network as far as i can but when i click into samba shares and my home network comes up i click into the home network and the the available computers and printers are shown but when i click to open a site it just shows 0 files i have tried to share all files within my encrypted network but im still not doing something right. the same sites show up and all files are shared on my Windows computers and printerswhat am i missing or doing wrong? im using open suse 11.3 and KDE and Samba Shares.
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May 12, 2011
what is the best configuration in httpd.conf to set up an intranet with Apache on Windows server?
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Aug 10, 2011
i have qmail toaster installed on centos5.6 , i want to divert my local intranet mail to my gmail account,i am using thunderbird as email client
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