Ubuntu :: Remote Access (SSH Or VNC) Being Blocked
May 18, 2010
I can't seem to remotely SSH or VNC into my machine. If I'm on the LAN and try accessing via LAN IP, it works fine. If i go in through a remote address (my dyndns) or even my home IP, I can't connect (yes, all of the ports are forwarded, I've triple checked this multiple times). Interestingly enough, port 80 works just fine. It would seem as though some sort of firewall is blocking me. I've done this plenty of times before with various machines, and this has me quite perplexed.
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Jun 11, 2010
I have an old FC2 box running Squid version 2.5. It has been running since 2003 so I am in the process of replacing it. I have a new machine with FC11, iptables, and Squid 3.0 installed.
On the old machine I use iptables to intercept Port 80 traffic and send it to Squid. By default I block all internet access and allow only sites that are in an Allowed_Sites.txt file. Within Squid I also have statements to allow certain users to bypass Squid based on their IP address.
I have set up the same thing on the new box. I have iptables intercepting the Port 80 traffic and sending it to Squid. That is working because if I remove the redirect statement from iptables all internet access is blocked.
The problem I am having is that Squid is not blocking any websites. It acts like the ACL is set to http_access allow all. I have worked on this for several hours and am stumped.
These are my Squid rules:
acl allowed_sites url_regex "/etc/squid/Allowed_Sites.txt"
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl SSL_ports port 443
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access allow Bypass_Users
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
acl our_networks src 192.168.1.0/24
http_access allow allowed_sites
http_access allow our_networks
http_access deny all
icp_access deny all
htcp_access deny all
http_port 192.168.1.254:3128 transparent
hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|?) 0 0% 0
refresh_pattern . 0 20% 4320
visible_hostname FC11.proxybox
icp_port 3130
coredump_dir /var/spool/squid
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Nov 21, 2010
I am in China, where some web sites(....., facebook, etc) are blocked. So I have to access these blocked site by VPN. But how can I access blocked sites by VPN and unblocked sites by my direct ADSL?
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Aug 12, 2011
I have a vps server running certain services which can be accessed via a web browser (e.g webmin control panel), but I have recently been unable to access these services from my home machine using Firefox 5.0, running ubuntu 11.04.
Example:
I can access the server on port 80 fine, eg: [URL]
However I cannot access my webmin control panel on: [URL]
The pages takes ages to load and then times out. Same with transmission-daemon on: [URL]
Everything is set up fine on my server, the ports are open in firewall etc. and I can access these pages fine from my work computer.
This has only started happening in the last day or two and had been working fine up till then. I have not messed around at all with the firewall on my home machine. I have tried other browsers besides Firefox with same result.
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Sep 17, 2010
I don't know is this the right place to ask, but i must ask some questions Here's my problem.I'm a student in highscool,and here we use Linux(ubuntu) OS .Every classroom has like 30 PC's connected with the main computer(the teacher's one) so....3 days ago we were forbidden access to some websites it says This domain is Blocked.By the way the Linux version installed is 7.04(feisty Fawn) i tried disable cookies that did not worked,also tried to whitelist some website,that also didn't worked out
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Mar 12, 2011
We want apache to server and load our website Only for One specific sub-domain and all other domains should be ignored/dropped or redirect.
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May 3, 2010
My home network consists of two computers that share one internet connection via a router. I have a desktop computer that runs Ubuntu (Karmic), connected via ethernet; and a netbook that runs Windows 7 (will be Ubuntu, eventually), which connects wirelessly. Both computers have multiple user accounts. What I would like to do is access my account on the Ubuntu desktop via the netbook while my wife is using the desktop with her account (or enable her to access her account on the desktop while I am using it). I looked into VNC, but it, apparently, only supports the active desktop. So, if someone connected to the computer while it was in use, they would be looking at the other user's desktop. Is this a misconception on my part?
So, I have 3 questions:
-From the netbook, how can I log into my account on the desktop and just get a command-line shell?
- From the netbook, how can I log into my account on the desktop and actually have access to my Gnome desktop?
- If I leave my house with the netbook, and want to log into my desktop machine across the internet (CLI and/or Gnome), how can I do that?
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May 10, 2010
I have a Windows 7 (Home Premium) computer and another computer with a fresh installation of Ubuntu 10.04 (32-Bit) on it. Since I have the computer with Windows 7 and it doesn't come with Remote access due to it not being at least the Professional edition (which is really lame if you ask me!), I won't be able to access my Windows computer from my Ubuntu computer (from what I have gathered from [URL].. So my question is how can I access my Ubuntu computer from my Windows 7 machine? Does this require more then just installing Samba on the linux machine? I do have RealVNC Enterprise edition 4.51 if that will work?
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Feb 10, 2011
I'm relatively new to linux. I was wondering if there is any program available that will remotely access my iPhone. I have seen programs that let me controll my PC using my iPhone but i would like the other way around. The girlfriend doesn't have internet access at home and she's always texting me. Well if I find a program that lets me remotely access my device I can text her back without leaving the keyboard.
OS: Ununtu 10.10
iPhone 3G Jailbroken (3.1.3)
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Mar 7, 2011
New member here just looking for a solution for remote access over LAN and the internet. I've known Linux for seven years but have only begun working with it extensively the past couple months. I had recently tried a couple free VNC solutions but ended up giving up when nothing worked. TeamViewer ended up not working properly either and instead crashed at the end of each session. Any chance there's a simple solution to this?
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Jan 4, 2010
I do what I can to Google and forum surf for answers. How possible, is it for someone like myself that is running:GNOME 2.28.1, Ubuntu 9.10 platform via my laptop, to use and control my desktop which was built by me, via my laptop if it's running the same platform...I've read posts about accessing Windows via Linux, however when it comes to find answers related to my issue, it keeps me from installing the OS on my desktop....If I can acheive that, would I then be able to control both units via speech recognition? The laptop unit has a built in microphone as well as bluetooth. The ultimate goal is to create a complete wireless environment accessible via bluetooth, command based or not...I know it might seem a bit farfetched, I'm just reaching the beginning stages of complications via SSH confusion and acknowledging Remote Access oppourtunities
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Jan 29, 2010
how i can remote access my pc at home from work ? on different pc that has access to INTERNET. what software shall I install on my pc at home ? I want to be able to install software on my pc at home from my work place, my home pc has unbuntu Linux ubuntu 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 17:01:44 UTC 2009 x86_64 GNU/Linux
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May 12, 2010
Just curious your recommendations for remotely access windows xp computers from ubuntu. The current setup i use is tightvnc listener on ubuntu and ultra vnc single click on the windows xp computers.
I know rdesktop is widely used but i would like to continue their session so they can show me what is going wrong.
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Aug 6, 2010
My dell notebook runs Ubuntu (Karmic Koala). I want to be able to remote access my mom's Mac notebook (I believe it's an Airbook?), so that I can assist her with problems on her computer.What would I need to do on my computer (and how?)What would I need to do on her computer (and how?) to set this up?
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Sep 7, 2010
I have installed Ubuntu Server (lamp+openssh) on a laptop in order to use it as a testing web server for my projects. After configuring it I've also installed the GUI to make things easier as I'm not very proficient using just the command line.
I'm using the wireless connection on the laptop to communicate with the router and my main desktop (Windows). I've assigned it a static local IP (192.168.1.99) in order to be able to access the sites on my web server from my desktop, and everything works fine.
Now comes my problem: I need to be able to access those local sites from a remote location (outside of my local network) as well. How can I do that?
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Feb 19, 2011
I am using ubuntu 10.10 netbook remix version. I want to access a remote computer outside my LAN which is running on Windows.I tried vinagre for the LAN but the result is that the client (running on windows) system goes logged off making the client completely unaware about what is going on with his system.Is there any other way to access any remote Windows system ans still the client able to see and interact while it has been accessed by ubuntu.
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Mar 6, 2011
I have windows XP and Ubuntu 10.10 installed on the same computer. I want to remote access windows xp from Ubuntu. I have tried remote desktop viewer, terminal server client and tight VNC but nothing works.
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Mar 13, 2011
I just set up Remmina the other day to be able to access my desktop remotely. However, I can only do this when I am connected to my home network. Is there a way to set up Remmina so that I can connect to my desktop remotely from outside my home network?
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Mar 15, 2011
I'm wondering if there's a way so that several people can log onto my computer at the same time. When they connect it goes to the login screen and they choose their account and log in. Everybody has a different account and sees a different desktop. Is that possible?
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Mar 29, 2011
We have installed Ubuntu Server 10.04 LTS for file share (Samba) at our local network.
I want to access my local server (Local IP 192.168.1.200) via internet from remote location. I have already installed SSH on our ubuntu server. I understands that using "Putty" we can access our server. Furhter, our Internet IP is dynamic (which is not an issue for us).
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Jun 28, 2011
I am looking for a way to be able to access my PC from a remote place. The problem is that I have a dynamic IP. I have registered at dyndns and have found settings in the router to 'Activate Dynamic DNS' and then you supply your dyndns address, password and tell it to update the WAN ip address automatically. This works, however only internally and only to the router as opposed to my PC I am not interestes in accessing the router to configure that remotely, only accessing my own PC.
Is this something I can accomplish with:
A ZyXEL P-660R-D1 router
A dynamic WAN IP address
A PC connected to the router
A static IP address for my PC
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Apr 7, 2011
Any way to remote access my Ubuntu Server using my Android phone?
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Feb 23, 2011
I have a Filer Server running Ubuntu Server 9.04 located at my office. I would like to access these files from my home. How would I accomplish this as simply as possible?
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Mar 16, 2011
iam not able remote login , while yesterday i was able to login . when i do ssh my machine from other machine he asked for passord . after that it give erroe permisson denied . but i was able same password yesterday.. same issue was yesterday .
when i install fresh cent os 5.5 . after it work well till night. but next day morning . we are not able to remoe login .
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Feb 17, 2010
I have 4 boxes on a local network: 2 with XP only, 1 with Ubuntu 9.10 only, and 1 with both. All boxes can share folders, set up with share-admin instead of using Nautilus right-click properties for each folder. I can see and control the remote desktops on all boxes, to all other boxes, from all other boxes,with one exception: I can only access the XP desktop on the dual boot box, not the Ubuntu desktop. When I try I get: "Connection to host 192.168.1.102 was closed." I am refused access to the Ubuntu desktop in this manner from both the other Ubuntu machine, and from both XP machines.
My setups are basically plain vanilla with routine installs of Ubuntu 9.10. On the XP machines I am using TightVNC on the XP machines to view both other XP desktops, and the Ubuntu desktop that is accessible. On both Ubuntu setups I am using (I suppose) vino and vinagre, and have completely re-installed what I think is the relevant software. There is no firewall running on the Ubuntu dual boot, when I check ufw. For reasons I cannot determine the inaccessible Ubuntu desktop is not providing its own address but instead in the Remote Desktop config dialogue it identifies itself as 27.0.0.1 which I think is the loopback id. I know so little about this sort of networking that I am not giving all relevant info, but I still thought I'd try.
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May 19, 2010
I am very new to Ubuntu (any Linux) evironment. And it has been a long long time since I have dealt with seting up servers. I have done alot of searching but haven't found exactly what I THINK I am looking for.
I want to create a file server (I have created my Ubuntu server cd) and add it to my home network (all windows pcs). I need to be able to access it when away from home ( I work away from home mostly). I will be accessing this with a Windows 7 laptop.
What do I need installed on the server? Samba for the file server part. What else for the remote access? I also would rather not access the data via FTP. I would like it to come up as a drive in my Windows Explorer. If not, I remember back in college (20 years ago) when I could open a little window (XWindow maybe) on the other server.
An issue I see that might not be an issue. I have a static IP from my ISP. It comes into my home via their modem. I attach to the modem with a router. All my laptops connect to it wireless and this server will be wired. How do I hit the server and not one of the laptops with only having the one IP address? Each of these plus my external harddrive and printer have their own internal IP address' that I have assigned.
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Jun 24, 2010
I found a strange problem while using rsync to backup my files. I use a script:
#!/bin/bash
SOURCEDIR="/"
TARGETDIR="root@DLINK-13F017:/mnt/HD_a2/administrator/RAIDBackup/"
[code]....
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Aug 8, 2010
Is it possible to remotely access, inject, manipulate files and/or folders in the Windows NTFS partition when logged into Ubuntu?
I'm either logged into Windows or Ubuntu but NOT both -- ever. Therefore, while logged into Ubuntu, would it be possible for someone to crack into Windows via Ubuntu using Wi-Fi or modem?
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Sep 1, 2010
When I try to access a network connected folder bying on etwork->ComputerName->FolderName, I almost always get this message:Unable to mount locationDBus error org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)If I click OK and try again a few times, sometimes it will connect and everything is fine after that. If not, I can issue a mount command in the terminal and access the /mnt folder that way with no problems, but clicking Network, I still get the timeout command.
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Sep 22, 2010
I need to access a windows share at my university's server. When I am at the university, I can access the share by nautilus (or dolphin) in a similar way to ftp:
smb://domain%5Cusername@server/share
The thing is that when I try the above anywhere else except the university, it does not connect. I guess it has something to do with the domain, but I am not sure.
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