Ubuntu Networking :: Cant Access Other Site From Other Computer?
Nov 3, 2010
running apache2, i have already created a working sites. using virtual name hosting.but my problem is, i cant access my other sites except my server's localhost from other computer. i dont know what seems to be the problem, can you guys point me where to start looking?
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Oct 13, 2010
How I can benefit from a public external IP? Do I need a public IP to access my computer from a remote site?run a tftp server ?
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Feb 18, 2010
Here's a strange one. On my internal network, there are two WinBlows boxes, both connected to my Linux Router/Firewall. Yesterday, I needed to download a file from http://www.freebsd.org. The 1st machine I tried, would not connect from FireFox. When I tried, on the 2nd, it connected immediately. So, I did all the usual "stuff" on the 1st one. Re-booted, as it's WinBlows, cleared browser cache, etc. etc. It still wouldn't connect. BTW, connecting to other web sites was no issue. Just FreeBSD.
So, just for grins, I ran a traceroute from both machines, and here's where it gets freaky. Here's the traceroute from the working machine code...
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Mar 23, 2010
Trying to access 67.15.245.6 (its a forum site). I can't get to it from home for over a month now. I can't ping it, but I can ping obvious things like google. Tracert isn't working at all. Once it hits the lightspeed.frokca.sbcglobal.net hop it just dies like ATT isn't allowing traceroutes. I've been using Tor as a work around. About 3 months ago I basically had the same issue with openbittorrent.com's site.
I have a linux server and windows XP box. I can't ping the above IP nor tracepath/traceroute to the IP from my linux box.
I have ATT uverse.
EDIT: The site is hometheaterlounge.com (The IP won't do you much and its just the IP of the site host).
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Oct 29, 2010
How can I block access to a certain internet site using ufw? Let's say I want to block access to www.xxx.zzz (IP 1.2.3.4) to any program and user; using iptables I can do
sudo iptables -A OUTPUT -d 1.2.3.4 -j DROP how can I do that using ufw? if ufw can not do this, where should I put this rule to persist it over reboot, without interfering with ufw chains infrastructure?
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Sep 21, 2010
I have ubuntu server installed on a pc. The motherboard died, so I switched the HD to another computer. Everything is fine except the network. I cannot access this computer from other computer (while it was possible before). I looked at the interfaces and everything seems fine. The nic itselft seems to work too.
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Nov 29, 2010
Using Ubuntu 10.10 I have a VPN account with VPNtunnel.se. I configured everything as described on their site. It uses OpenVPN It connects no problem. However; after it connects instead of having a nice secure connection I have no connection at all! I can't access any site, email, bittorrent all come to a screeching hault. The service works fine in Windows. I'm useless with linux networking.
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Mar 27, 2011
When I'm trying to access my site using Firefox I get this error: "Unable to connect
Firefox can't establish a connection to the server at mysite.com.
-The site could be temporarily unavailable or too busy. Try again in a few moments.
-If you are unable to load any pages, check your computer's network connection.
-If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web."
Then I tried to access my site using Opera and Chrome but I get the same error, that the browsers couldn't connect to it.
The site to which I'm trying to connect is definitely up. (I ask a few people and they can access it and I looked at [url] and it says that my site it's up)
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May 28, 2011
I have three computers in my network, but two will be mentioned. Computer A is a Linux Mint 9/Windows 7 dual-boot, and I have just installed Mandriva Free 2010.2, which I will call Computer B.
Now my main problem is that Computer B, while it can see and access Computer A's shares as well as the third computer, the aforementioned computers cannot access Computer B. The message was: "Unable to mount location/Failed to mount Windows share." Now, the SMB protocol was used because of the third computer and Computer A have Windows OSs installed in them.
What I originally wanted was that I can share Computer B's NTFS partition, namely Documents and Downloads, to the other computers. And I can't do that, because of the error message.
What I can do, however, is use Computer B to view shares from the other two computers (Computer A, as an example). By my experiences in Linux Mint, I understand that I'd have to mount my Windows partitions in order to share them. I don't even know if my NTFS drive in Computer B is mounted, though that is what was described.
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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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Dec 31, 2010
I managed to configure my W890i phone to get access to internet through an ubuntu-based computer. It's very easy to use the phone to give internet access to the computer, but the opposite is quite more tricky. For that I've done the following
----On the phone---
-Set the USB network option to "through computer", so that the phone uses the computer's internet connection and not the opposite.
-Decide and set "Shared Network" parameters: user, pasword and workgroup.
-In "conectivity-> internet connection" set "allow local network" to "yes"
----On Ubuntu 10.04---
-Install samba, samba-client, smbfs, smbclient, firestarter and dhcp3-server
-Configure Samba (System-> Administration-> Shared folders): same workgroup as in the phone, add new user (the phone), passwd this new user. In my case the user was called "w890i" and the password given was the same.
-Once the phone is connected to the computer through USB (then select "phone mode"), a new connection appears in NetworkManager: usb0.The aim is to create a shared network that gives internet access to this device. Edit the IPv4 parameters of this new connection, set them to Manual and give an IP adress (192.168.0.1) and a subnet mask (255.255.255.0); the rest of the fields are left empty.Connect this network.
-Set firestarter to use dhcp3: sudo ln -sf /etc/init.d/dhcp3-server /etc/init.d/dhcpd
-Launch firestarter and follow the wizard. Set "allow internet shared connection", choose the device for the primary internet access, and then the device for the shared network (usb0). Then change the settings for firestarter: activate DHCP for local network, set IP to the one we gave before (192.168.0.1).
-Open dhcp3-server config file sudo gedit /etc/default/dhcp3-server And set INTERFACES="usb0"
-Set the policies of firestarter: in incoming connections, allow connections from the IP adress given to the phone (192.168.0.1). Then add rules for the ports that need to be open for this connection. I opened HTTP, HTTPS, SMB, SMTP, POP3, IMAP, IMAPS, DHCP for all the connections in the local network.
-Apply policies and start the firewall.
------------
After all this, the phone can access the internet through the computer. Two problems appeared:
1. I couldn't get access to https sites, like webmails. The phone gave a "communication error". But then I tried with Opera instead of the browser built in the phone's firmware, and I could finally get to https sites.
2. I couldn't retrieve mail, neither POP nor IMAP nor IMAPS. I thought it was a firmware problem again, and I tried out several mobile phone email clients written in java, but none of them worked.
So this is at the moment the problem. If I connect from the phone to the internet directly through 3G, the email clients work for all my accounts. I don't think it's a firewall problem, because the ports are opened for this connection
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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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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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Feb 9, 2010
Have no idea what I am doing operating a server. Our programmer got a new job and I am the one who has to take it over. Everything was fine til yesterday. You see I made a control panel to easier update the site www(dot)discoverysound(dot)com
but yesterday when I went to update the site I got an error called fopen. I thought I fixed it (and boy did I ever) but now I cannot get to my site because it says Forbidden You don't have permission to access / on this server. Apache/2.0.47 (Unix) mod_ssl/2.0.47 OpenSSL/0.9.7a DAV/2 PHP/4.3.3RC4-dev Server at www(dot)discoverysound(dot)comPort 80.
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Oct 23, 2010
I recently decided to install Samba in Ubuntu as a home file-sharing server. However, when I try to access this computer from another (using Windows 7), an error messages comes up. It says: "You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.
The specified domain either does not exist or could not be contacted."
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Mar 26, 2010
So, I'm trying to set up a network with my windows netbook so the Ubuntu comp can access the internet through the netbook's wireless. Finally got the network set up, but can't access the internet on the Ubuntu comp. Also, the Ubuntu machine can recognize and access the files on the netbook, but the netbook only sees a computer named Owner-a6012abd6 which asks for a password.
The netbook is running Windows XP SP3, with an Atheros AR9285 Wireless Network adapter(internet) and an Atheros AR8132 PCI-E Fast Ethernet Controller. The Ubuntu comp is running Ubuntu 9.04.
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Sep 10, 2010
I'm not really a newbee in Linux but I am a newbee in networking. I have both a Ubuntu laptop and a Gentoo desktop computer. I have just bought me the MBR1000 Cradlepoint router and it works great with my Verizon USB 760 modem plugged in it. I can now send and receive email on my Ubuntu laptop. I like it.My Gentoo desktop computer is just sitting there with no Internet access because my Verizon modem is no longer plugged into it but plugged into the router instead. Only my laptop now has Internet access. The laptop has an integrated wireless card built in the MB but my desktop has no such capability.
Is there a way (besides buying a wi-fi adapter) to get Internet access on my desktop computer through networking so that the router would give both computers Internet access at the same? My Gentoo desktop does have an ethernet adapter that perhaps I could useThe router has several LAN ports and one WAN port, both unused.
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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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Apr 26, 2011
I have been studying LAMP for a while now and all my websites are on the localhost. But if i wanted to access my websites from a different computer, how do i access do that? LAMP (192.168.0.2) client (192.168.0.3). Do i need to setup the DNS servers as well in my home network for me to access my intranet (LAMP).
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Sep 8, 2010
I am in a situation at the moment which means I am going to be without an ISp for a week or two, and I can't survive that long without the intenet!!! What's more, I have 8 computers that need to connect, though not necessarily at the same time, but certainly more than one at a time. Anyway, I came up with an idea to buy a Mobile Broadband Dongle, and then share the connection via my PC. Problem is, I don't know how I would go about setting my PC to be a Wireless Access Point/makeshift Wireless Router, and sharing the connection.
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Dec 18, 2010
Very strange happenings going on here. Have three computers that dual boot with Ubuntu and WindowsXP. All three have failed in the identical manner!While reading a web site in Windows,the computer screen becomes frozen then a messege flashes momentarily stating "A problem has occurred" then the computer shuts down and will not reboot. Attempting to reboot results in a black screen with an unresponsive cursor in the upper right hand corner of the screen.
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Jun 12, 2011
I'm not familiar at all with the networking functions of linux systems, but I just bought an iPad, and I want to store all my movies, music, and documents on my computer at home, and access them from my iPad. I've heard a VNC client is the best way to go. But will this allow me full access, or just to view the screen? Will I be able to watch movies at the highest framerate with this method?
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Feb 8, 2011
I have set samba shared folders on my ubuntu 10.04, which Windows users on my network use. The problem is, even that I leave the computer on, they cannot access the shared folders until I login with my account to the computer.This is a real problem since I either need to come to the office, login with NX or tell them the password which I don't want to do
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Jun 19, 2011
I wish to write a python code so that I can access a file on a windows computer on the network. I know the IP, Computer Name, Workgroup, username,password and any other neccesary detail of the computer. I also have the access to the computer to intall any software I may need to install on the said windows computer.
Kindly guide me so that I may access the files. The files are in a folder shared over the network but not on the windows drive of the computer.
I am able to access the files using gui (ubuntu 11.04).
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Aug 3, 2010
I set up my first web server and it works flawlessly -when accessed from external network or from other computers on my lan. However, I cannot access it from the computer where the server is run on. I have found numerous people with similar problems but the flavour I am experiencing is somewhat different and no solutions I have found apply to it.
I have two network interfaces on my server, eth0 (public static IP connected to internet directly) and eth1 connected to LAN 192.168.1.0/24 range. The server is 192.168.1.1. It is connected directly to the internet and serves as a SNAT for other comps on the lan.I added "192.168.1.1 www_server_com" to the /etc/hosts on the server and also on the other machines on the LAN. All the other machines can open website without any problem.HOwever, the server itself only opens website if the address islhost. Internal IP, i.e. 192.168.1.1. gets a time out and so does www_server_com ( I cant use dots as I do not have more than 15 posts on the forum )Here is the firewall script I am using.
#!/bin/sh
#
# Example Firewall Script
[code]...
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Mar 25, 2010
If a site reaches a point where 1 machine simply isn't enough to handle it, what exactly is done? I've heard of "round robin DNS load balancing", but that's obviously not going to work if the site has CGI scripts/a substantial backend of any kind as that data will have to be copied over to every server, and I'd guess that that's not feasible. If the site uses a MYSQL server, and a second web server to take over the extra traffic from the first is put up (how would traffic be redirected to it?), when it makes a database query, it still has to connect to the 1st server, so, we're not really solving the problem at all, it remains just the same.
So - how is it done, for large, high traffic sites? (possibly like LQ itself?)
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May 10, 2011
running Ubuntu 10.10 and mozilla and seamonkey... Tried to access a website: [URL] and got the error: The page cannot be displayed You have attempted to execute a CGI, ISAPI, or other executable program from a directory that does not allow programs to be executed. Please try the following: Contact the Web site administrator if you believe this directory should allow execute access. HTTP Error 403.1 - Forbidden: Execute access is denied. Internet Information Services (IIS)
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Aug 13, 2010
I've got my username on Ubuntu (I can't remember version number, but its 6 months old aprox)..
I'm the sole user (& admin)..
I have /home/myusername/ & can edit all files (without using sudo), but if I want to edit a file in another directory - i need to use Sudo..
I'm setting up a website /home/website/
(this is the same structure as the external website I'm going to edit, i want the directory structure to be the same..)
is there a way, I can allow FULL access to the /home/website/ directory - While logged in as /myusername/
(IE So I do not need sudo (or any 'admin' command), to edit the files )
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Aug 2, 2010
I am a newbie to linux of 4 weeks. I set up my first web server and it works flawlessly - when accessed from external network or from other computers on my lan. However, I cannot access it from the computer where the server is run on. I have found numerous people with similar problems but the flavour I am experiencing is somewhat different and no solutions I have found apply to it.I have two network interfaces on my server, eth0 (public static IP connected to internet) and eth1 connected to LAN 192.168.1.0/24 range. The server is 192.168.1.1
I added "192.168.1.1 www.server.com" to the /etc/hosts on the server and also on the other machines on the LAN. All the other machines can open website without any problem.
HOwever, the server itself only opens website if the address is localhost. Internal IP, i.e. 192.168.1.1. gets a time out and so does www.server.com.I do not understand why the record in etc/hosts doesn't point it in the right direction. It seems that when I open address 192.168.1.1 it still gets routed to the external network. I have seen using DNAT to deal with the problem but it didn't work in my case (maybe I didn't do it correctly). I have spent whole evening/night trying to sort it out, it's 4AM now, going to bed frustrated and angry (at myself hahaha). Still like linux very much, won't be going to windows anymore. Please help
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Mar 4, 2011
I am wanting a computer with an external dialup modem (ppp0 modem through a com port /dev/ttys1) to act as a gateway to the internet, forwarding internet traffic through ethernet (eth0 is set to static 192.168.2.2) to a router (the router is 192.168.2.1) where it will be broadcast to other wireless computers like my laptop (192.168.2.3). I've had this setup until recently when the gateway computer (the one with the modem) died. Now I'm replacing that machine with another box and an install of Ubuntu 10.10 but so far things aren't working for me.
Success so far:I have dialup access working on the new box. Took me a while to work out the configuration for getting dialup working, though the IP address is Dynamic (or it won't stay connected), "Check carrier line" is off, and "Ignore Terminal Strings (stupid mode)" is on in order to successfully connect and stay connected to my ISP. I also had to make my normal (non-root) user "lancer" a member of the "pid" group (the reboot) in order to use gnome-ppp as non-root. The laptop (192.168.2.3) is successfully connecting to the router (192.168.2.1) as I can see the router configuration page when I type http://192.168.2.1 into the laptop's web browser. This setup is unchanged from how I had it before when this was previously working and I don't want to change how the router itself is set up. What I want is to know what to fix in the new box in order to get it connected to the router (through ethernet) and bridging the internet through.
My problem is that whenever I plug in the eth0 from the gateway (192.168.2.2) to the router (192.168.2.1), Ubuntu's automatic plug-me-in network detection kicks in and I find my dialup no longer working through some kind of IP conflict (at least that's what I think it is). Maybe I don't have the "gateway" correctly assigned? (in the gateway computer for the ethernet connection, I had it pointing to itself as I don't know what to put for "gateway IP" as that is automatic So, just to check my connection, here I am pinging google (from the gateway computer which has the dialup modem) once a dialup connection has been made.
Code:
lancer@lancer-desktop:~$ ping www.google.com
PING www.l.google.com (74.125.237.17) 56(84) bytes of data.
64 bytes from 74.125.237.17: icmp_req=1 ttl=55 time=179 ms
64 bytes from 74.125.237.17: icmp_req=2 ttl=55 time=176 ms
64 bytes from 74.125.237.17: icmp_req=3 ttl=55 time=158 ms
[Code]...
What do I need to do in order to make Ubuntu of my gateway computer stay connected to my dialup but also simultaneously share an ethernet LAN to my wireless router and feed traffic to the other computers from there? I have googled this but some of the most promising instruction (e.g. http://www.ubuntugeek.com/sharing-in...in-ubuntu.html) call for packages like dnsmasq or ipmasq which seem defunct now in Ubuntu 10.10. Other pages seem to suggest dual-networks "can't be done" in Ubuntu [URL].. (what!?! I had it before my other gateway died)
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