Ubuntu Networking :: Local Company Site Is Invisible / Visible It?
Dec 20, 2010
I have the problem with Ubuntu to access the local site within my company network. This network has access to Internet, but the company's site does not have a public address. It is like "http:e-learning.local". I can access this site from any windows machine, but I can't access it from ubuntu. Only if I use IP address, I can access it. However, I have normal access to other sites on the Internet.
Do you have any suggestion how to solve this problem?
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Jun 27, 2011
Problem:Your company network has internal only hosts / websites with names that end in .local, e.g.Your freshly installed Ubuntu machine works fine on the network, has internet access, etc. but cannot connect to these particular systems.Testing DNS with tools like dig / nslookup works fine, but normal name resolution with ping / telnet / browsers does not work.Solution:1. Open a terminal window2. Enter the command sudo nano /etc/nsswitch.conf3. Change the following line:hosts: files mdns4_minimal [notfound=RETURN] dns mdns4to this:hosts: files dns4. Press Ctrl-X, Y, Enter to saveExplanation:Ubuntu ships configured to do name lookups for self-configuring networks, based on the AppleTalk / mDNS / Bonjour protocol. In the configuration shipped for the resolver, this protocol is considered the final aurhority for the ".local" top level domain, and DNS will not be checked. The above configuration change eliminates this and restricts lookups to (a) /etc/hosts file, followed by (b) DNS
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Mar 22, 2010
My video card is Ati radeon HD 3730 i installed driver from official amd site.
And after installing driver cursor becomes invisible.
I tried
Option "HWCursor" "off"
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Aug 26, 2010
I am using Network Manager to connect to a VPN server so that I can access some of the computers on the local network there. When I'm connected, I have two problems: All my internet traffic goes through the VPN. My computer is no longer visible on my local network. I waste a lot of time connecting and disconnecting the VPN. Is there any way I can set up a VPN so that I am still on my local network and only requests to 172.x.x.x go through the VPN. I suspect it can be done with iptables, but all the info about iptables goes WAY over my head.
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Feb 18, 2010
In the office there is a local network with samba+openldap PDC. The local domain name is company.net. The company desided to create a corporate Website on a remote hosting and desided that the site's domain should be company.net which is same as local network's domain name. So now it is not possible to reach that corporate website from within the company's local network because, as I guess, bind9 which is installed on above menioned PDC looks for company.net on a local webserver. Is there a possibility to let people from this local network browse the remote site?
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Nov 12, 2010
I am starting to develop websites in Ubuntu. I have set up apache server, php, mysql, and phpmyadmin. I have also set up a local domain for the site. Everything works great with html files, but how do I get Firefox to open .php files instead of trying to save them.
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Jul 27, 2010
I've been on a quest to enable full routing through my openvpn tunnel between my office and the colo. Masquerading will work, however it will throw off anything key based and makes a lot of things just more difficult and vague in general. Is there an easy way to do this via iptables? I tried using quagga hoping it would magically solve my problems, however it does not seem to do my routing for me . I just did a basic static route within zebra...
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Feb 4, 2011
Does anyone know of an application for making copies of web sites that can be read offline? I've tried using wget, but with very mixed results. Something a bit more reliable would be useful
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Feb 10, 2011
I am running ubuntu 10.04, and I have one website up and running 1 website.from my local server, from my local computer on the same network I can type in the ip address of my server and I do get the default webserver is running page, however when I try to connect to my domain, it cannot find it. I have run a ping, and it reached it just fine.
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Mar 25, 2010
I have three locations with a central office connected to two remote locations. At the central office I run on a cisco asa 5505 two site to site vpns. The remote end of the first site is a checkpoint firewall , and the remote end of the second site is racoon on debian. Both sites are up and working. However, where at the first site traffic goes both ways, at the second site it only works from the central office to the remote office.
For example, I can ssh from a host in the central office to a host in the first remote site (through checkpoint firewall,) then ssh back from that host at the remote office to any host in the central office. In contrast, after I ssh from a host in the central office to a host in the second remote office (through racoon), I cannot see the central office hosts (ping the ip address of a central office host, ssh, etc. all fail.) The vpn settings at the central office (the cisco asa 5505) are identical. So it seems to me that some routing magic is missing on the host running racoon at the second remote office. Where would such setting reside? racoon config files? iptables?
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Jul 15, 2010
I installed a web server in fedora 13 and configured everything the way I wanted but when I go to localhost the screen is white and has files on the site, this also happens with phpMyAdmin.
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Nov 11, 2009
I would like to replace my aging Freenas box with a CentOS based NAS. I would like it to have the following features:
- SAMBA with Web admin
- BIND with Web admin
- Nice to have would be native AFP support for my MAC
Question 1: Is SWAT still the current Web-based config tool for SAMBA or is there something newer?
Question 2: Is there a decent, reliable, web front end for BIND?
Question 3: Is there a current AFP guide for CentOS, everything I am finding via Google is years old.
I would also like to build a second server that I would host off-site to sync my data to.
- I was thinking OpenVPN for the link between the servers. The "remote" NAS will have to be the one initiating the connection.
Question 4: Is OpenVPN the way to go or is there something better? (I need bidirectional communications)
Question 5: Is rsync still the way to go for the data sync or is there something newer which would be lighter and/or faster?
Just need some "current" advice overall - I think the last SAMBA box I built was 4-5 years ago so what I learned then may not be applicable today.
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Oct 5, 2010
I am attempting to setup my home ubuntu-box (10.04, 64bit) to vpn into work (cisco).My attempt has been partially successful - connecting successfully to shared drives - but I can't access the internal company sharepoint site (using network-manager-vpnc). When I enter the URL into firefox, it tries for a few seconds then displays the "connection was reset" error page (see attached). I don't even get the normal pop-up dialog asking for my credentials! The URL is resolvable to an IP, and the server can be pinged successfully.
So, to make sure my home network wasn't to blame, I brought home a work laptop with a windows vpn client. This worked fine.I then went to work with Ubuntu-NR on a USB stick and booted up into ubuntu to make sure ubuntu wasn't to blame. This worked fine
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Dec 3, 2010
When I try to connect to my company's VPN using the Cisco VPN client, I get a kernel panic. Please don't suggest I should Cisco's client, it only works with Kernels older than 2.6.24 (I have 2.6.35).
So I use vpnc. The error message is:
Quote:
$ sudo vpnc
[sudo] password for phirt:
Enter password for user@group@fubar.net:
received notice of type (ISAKMP_N_NO_PROPOSAL_CHOSEN)(14), giving up
vpnc: quick mode response rejected: (ISAKMP_N_INVALID_MESSAGE_ID)(9)
this means the concentrator did not like what we had to offer.
Possible reasons are:
[Code]...
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Jan 13, 2011
we hav one of our client want access our company computer from outside network and all our computers are under proxy server therefore all computers have limited access so one of the limited access computer, client has to access from outside. so we want this computer should remain under proxy server as well as accessible from outside network
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Mar 8, 2011
I am trying to access my company VPN using my Centos 5.5 laptop. I have the vpn client certificate issued by my company's IT dept. I am able to access the webmail using the same certificate which I installed in firefox. But I would like to know how to use this certificate to sign in to the VPN. Some of my colleagues use the Cisco VPN client v5.0.? software and the vpn client certificate to login. It works fine. But I would like to do the same with Centos.I tried connecting using vpnc. I converted the pcf file to conf using pcf2conf. Converted the certificate to .pem file. I replaced the /etc/vpnc/default.conf file with the pcf2conf converted file. Following is the converted conf file:
IPSec gateway example-vpn.companyname.com
IPSec ID <groupid>
IPSec secret <groupsecret>
[code]....
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Aug 14, 2010
I go up to the panel and click on the wifi manager, create a new network and name it "loganspc" with no authentication since previously created networks didnt work with those settings. Now before, I used this in conjunction with my eth0 connection so i could give my ipod internet. then i got a wireless router to do that. its exhibiting the exact same problem. Both the router and my laptop's network are invisible. I create it and then i cant connect to it with my ipod. I do a wifi scan (with an app, its jailbroken) and it doesnt find it still. nor does it find the routers network.
[Code]...
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Dec 26, 2010
I want to make my computer invisible or hidden to the other computers connected to the same wireless network. In other words, I want to turn off network visibility or network mapping. I think this amounts to the ability to turn on and off the Windows Link-Layer Topology Discovery (LLTD) Responder. [URL]... On windows, I believe this would be comparable to setting the wireless network as Public instead of Home. I like to share files using Ubuntu when I am connected to my Home router, but I don't want to be discoverable or visible to clients on a public wifi network.
I have already created a shared folder on my desktop which installed some sort of networking components to interact with Windows, but I don't want the public wifi network to see this folder, or my computer name at all. I want to be invisible to other clients on the same network. Right now I am visible and can see other clients connected to this public wifi router.
(In case some ask: I do not want to disable SSID broadcasting on the router as it is a public wifi router that I do not have access to.) Can anyone explain how to do this (preferably with a GUI method so I can reverse the steps when I connect to my Home network)?
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May 16, 2010
I'd like a way to see all of the devices on my local network and what their local IP address is. I recall that I used wireshark to troubleshoot a similar problem a while back, but it doesn't seem to have a way to see all of the devices- only the traffic. (I'd like to do this without having to physically interface with my router if possible, and I am in an encrypted network if that matters)
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Jun 28, 2011
I have installed a web server on my local network. Everything is well configured and web pages are shown correctly from Internet (outside the local network) using the domain or the public IP.The issue is if I try to see that web pages (using the domain or the public IP) from inside the local network. In that case the router config page (192.168.1.1) is shown instead of the web pages.From inside the local network I'm only able to see the web pages using the internal IP address (192.168.1.XX).
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Sep 3, 2010
I've just loaded Fedora 13 - my 1st Linus system - on my laptop. It went smooth and connected to the net via 'eth0'. But my wireless - an EVO610c Multiport W200 lan card - is invisible to Fedora. A couple of data points are:
[root@EVO ~]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:02:A53:BE:ED
inet addr:192.168.0.12 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::202:a5ff:fec3:beed/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9758 errors:0 dropped:0 overruns:0 frame:0
TX packets:6758 errors:0 dropped:0 overruns:0 carrier:0
[Code]....
I have the NetworkManager applet 0.8.1 (2 pc screens) but don't see the "Network' icon under System->Administration I've read that should exist. I have placed the latest 'Windows' networking file from HP (sp2956.exe) into my download directory. What must I do to 'discover' my wireless card? I suspect the use of "ndiswrapper" and have imported it into Fedora. All updates have been done via 'yum'.
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May 25, 2010
I've got an Ubuntu server hosting our websites and other various things here in our own home. We recently switched to a router that doesn't support loopback (abomination), so I've set up hosts files on our computers so we can access our own sites when on our home LAN.
However, we often take our laptops as we travel about, and I'm guessing due to the hosts files when we try to access our sites, it'll look on whatever local network we're connected to for our server, which won't work, obviously.
Is there a way to set up something like a hosts file that'll only try to look up the local IP of the server when we're on a specific network (our home one), or have one that tries to look for the local IP first, then proceeds to try and resolve the domain name and use the external IP if the local IP doesn't work?
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Jun 25, 2010
I have to ubuntu machine (9.10 and 10.4) with a openvpn tunnel between them.This is the situation:
Code:
NetworkA 192.168.0.0/24
|
UbuntuA br0:192.168.0.3 (openvpn bridge between eth0 and tap0)[code].....
UbuntuA has one only interface etho and there are two openvpn instance: one bridge istance with br0 and another instance with tun0.
UbuntuA is not the gateway for networkA. UbuntuB is the gateway for NetworkB.I need to comunicate between pc on networkB e those on networkA.This is the "ping situation" (no pc tested has an active firewall):
ubuntuA vs ubuntuB: OK
ubuntuB vs ubuntuA: OK
pc on NetworkA vs ubuntuA and ubuntuB: OK[code].....
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Jun 27, 2010
When I install lucid my wireless worked out of box, but for some reason it has stopped working.wireless Network is gray,by that I mean not active.
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May 3, 2011
I've been searching around the internet for the last two days trying to solve this problem, because I know how much everyone hates people who ask questions without looking first. Alas, I haven't found anything.
I have Ubuntu Server 11.04 running on a spare machine, which I've configured and got running just fine. I am trying to set up an IRC server on this machine for some friends of mine using UnrealIRCd. I have built and configured the server program, and am able to run it. Anyone who is connected to my home router (wirelessly or hard-wired) can connect to the server while it is up using either the internal IP, external (router) IP, or the dyndns.org name which is tied to the external IP.
However, anyone outside my home network cannot connect to the server. I DO have ports 6660-6669 forwarded on my router (IRC standard port is 6667). When connected to an external network, I cannot join the server by using the external IP, nor the DNS name.
I also have OpenSSH set up on the server machine, and have port 22 forwarded on my router. I CAN ssh into my server machine from within my home network, and I CAN ssh into my server machine from an external network.
Strangely, I can successfully ping my DNS name from inside my network, but not from outside. This doesn't make sense to me considering I am able to successfully ssh into the machine.
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May 15, 2011
I have tried to get familiar with ubuntu and kubuntu few times. With kubuntu I had multi-display problem which I couldn't solve myself. Then I changed to ubuntu 10.04 and 10.10. I did not have multi-display problem but wireless network problem which I could not solve myself either.I try once more with ubuntu 11.04 but now I try to use your help to progress to avoid many days and evenings wasted time.So again I have problem to connect to wireless network.
- I can see wireless access points
- When I try to connect one of them after entering router password after a moment I get error to not able to connect and I am asked the password again. (WPA & WPA2)
- Wired network works ok.
- Router is Buffalo WBMR-G125
- Wireless USB adapter is Buffalo WLI-UC-G300n
- Computer is self made PC with Asus M4 motherboard
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Oct 3, 2010
Maybe a site-to-site Ouija board connection.
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Jan 24, 2010
I'm trying to share some folders over the network, but the shared folders are not visible on another computer. This is through double clicking my computer from the Network list in Nautilus. However, I can access the share by typing the full address(<computer name>/<share name>) in "File > Connect to Server...".Since I can't type the address manually from my blu-ray drive, I need to get the shares to show on the network. What is wrong with my settings?
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Feb 23, 2010
I have two computers in the house that I have shared folders and one has a shared printer. I have a desktop running 9.04 and a laptop running 9.10. The desktop has several shared folders and a shared HP printer. The laptop only has one shared folder. Everything was working fine up until a couple days ago. I went on the laptop to access one of the desktop shared folders, and nothing shows up under "places, network" except windows network.
It no longer shows that the printer is currently shared either, but the funny thing is that I can still print to the desktop from the laptop.I just can't figure out how to access the shared folders.
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Oct 12, 2010
I've set up Samba under Ubuntu for windows SMB file sharing (currently unauthenticated but soon to be backed off against A.D.) This is great within Windows where l folders are available as mounted in all applications but from my Ubuntu desktop and Ubuntu laptops, we can only access network folders and files from the File browsers and bookmarks one finds in the "Places" menu. Our issue is that most (but not all) dialogue boxes don't have any options for viewing non-local files and folders. i.e. when I'm in my web browser and I go to upload a file from our local network file server to an internet location, the "Open" dialogue box cannot see any of our local network locations.
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