Server :: OpenVPN Prevent Sites From Being Accessed?
Apr 18, 2011
Is there a way to prevent users of an OpenVPN service from accessing restricted sites? I know this can be done through a proxy server but through a VPN there seems to be no way of preventing traffic from accessing porn sites or other as the traffic is encrypted. I am using a VPN in the same fashion as a proxy server except that the VPN is necessary because some video sites use rtmp on port 1935, which a proxy server cannot route.
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Feb 13, 2010
I want to configure a VPN over the Internet.I installed the 'openvpn' package, generated the key file, transfered it by a secure way to the client, and setted up the configuration file.
So, in that configuration file I input the IP addresses of the tunneled interfaces. Both IPs are static in the tunnel.
Then, I've heard somewhere that I can assign a dynamic configuration IP for the client. I do this registering a range.
Well, when I tried to change static IP to dynamic IP (changing '192.168.0.2' to '192.168.0.0/24') in the configuration file, the OpenVPN didn't work.
Obviously I don't know what I'm doing, and I really, don't believe that simply changing the IP will make it work, but I tried.
I hope I explained my problem as well.
My configuration file:
# OpenVPN Server Configuration File
dev tun 0
ifconfig 192.168.0.1 192.168.0.2
cd /etc/openvpn
secret key_file
In client I execute the 'openvpn' without the '--daemon' parameter.Then I want that my client uses a IP in a range (192.168.0.0/24, for example), instead of a static IP (192.168.0.2).I also thought to use a DHCP server, but I'm not sure that will work.
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Feb 1, 2011
My server is Ubuntu 10.04 which is used to test an Open ERP system.
However, once I setup everything and trying to be access from other workstations, it doesn't work!
Also, the server cannot found any Windows PCs in the network.
Does anyone know how to resolve this problem?
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Jun 26, 2011
I have configured web server in my home. it is working in LAN. but every one should be accessed from out site from LAN. how is possible ? i would like to access as http://123.123.123.123 Then i dont need the host name? My public IP http://123.123.123.123. My LAN IP [URL]... i did the port forwarding in my router. when i access the web from outside automatically logging into my ADSL router.
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Jul 24, 2010
I have a xubuntu mysql server, and my winxp machine is unable to connect to the sql server using mysql ODBC.
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Mar 3, 2010
I have a dozen huge folders loaded with files (images, and so..).. I was wondering if Apache marks the files it accesses..
Thus, in case I want to delete files which haven't been accessed or surfed for a long time.. is that possible?
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Feb 9, 2011
In the past week or so I've noticed some weird network behaviour. I find accessing some sites such as Amazon, Paypal, and Bigstockphoto really slow. Sometimes the page will not load at all. Other sites are fine. The problem sites are not a problem for others on my LAN at home. When I try to open the problem sites, I can see in Firestarter blocked connections coming from 2.1(8/9).xxx.xxx on various ports such as 36007. This only happens for the problem sites. I attached a typical output from firestarter.
This happens with Firfeox or Chrome. Using Ubuntu 10.10
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Jun 9, 2011
Does anyone know how to go about setting up a secure IMAP email server that is able to be accessed from outside the network? Similar to how you can access your google email account from your computer using Thunderbird.
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Apr 5, 2010
i have some problems with configuring openvpn tunnel connection to my openvpn server. I'm using static-key tcp connection. Network manager always said to me that connection could not be established. Also, when i try to run openvpn from terminal, i got some strange permissions problem:
Code:
openvpn --config config.ovpn
Mon Apr 5 15:48:37 2010 OpenVPN 2.1_rc19 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] built on Oct 13 2009
Mon Apr 5 15:48:37 2010 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables
Mon Apr 5 15:48:37 2010 /usr/sbin/openvpn-vulnkey -q moj.key
[code]....
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Oct 23, 2010
I'm trying hard to run an openvpn server on a openvz VPS, the problem is packets sent from openvpn server process, doesnt reach the client, so connection is never stablished (I run tcpdump on server and wireshark on client to carefully investigate whats wrong), the first guess is that a kind of firewall is blocking traffic (I tried connecting to server through different ISP's but it's possible the national network provider applied some filtering but it cant be on IP,src port or dst port as I'd tried different configuration.
what about deep packet inspection technics, is it possible to block my traffic?) but at exactly the same time I can transmit UDP packets using netcat from server to the guest. there is no firewall enabled in between, I had tried, tcp and udp, tried both open vpn and openvpnAS and tried any thing one can imagine! the VPN is configured as a routed (TUN) type on debian
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Aug 9, 2010
i have installed openvpn and config it for a tunnel. my server.conf and client,conf is as follow:
server.conf
port 1194
proto udp
[code]...
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Jul 6, 2010
i just one to emulate the windows 2003 - windows XP easy VPN deployment, with my ubuntu server.I got my server side (ubuntu) and client side ( openVPN gui) and everything looks okbut now, i cant make a //server/SHARED and get from my house to the office's docs, despite the conection its ok... whats wrong?
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May 30, 2010
My sites on the server are loading very slow, though my server load is under 1.00.What can be the problem, when ever i restart httpd the sites starts to load instantly.
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Apr 12, 2011
We're setting up an OpenVPN access server, a quite straight-forward and very customizable system. Only we have a problem, I guess caused by Apache, when we try to reach the client web server via a custom port (see screenshot in attachement) we get the following error: Code: 501 Not Implemented. The requested method is not implemented by this server. Although we have added on the cisco router a port forwarding for port number 9943. It is working when we access the website : port with the local IP address [URL]...
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Nov 19, 2010
I am running a centOS server using ISPconfig 3.My web sites are not showing content only this phrase 403 Forbidden
You don't have permission to access / on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
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Jun 18, 2010
In my college all popular sites blocked i am working on linux... is it possible to Encrypt the http request? anyother way except proxy sites
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Sep 20, 2009
I have a server with 8GIG of ram and a quad-core q9550 CPU and 500GIG of hard-disk space, and 100Mbps net connection.I have separated it into 3 parts of 2 Gigs of ram each, by virtualization, so there are 3 VPSes. The problem is that the one of the VPSes (created) with centos and WHM/cpanel would go down very often, as many as 60 times per day!I asked one of my friends to have a look at it, and he told me that Tomcat was the reason.Things got a little better (ask me what I changed about Tomcat?!) and after that the server would go down only about 20 to 30 times per day.I asked the friend again, and he told me that the CPanel integrated antivirus would cause the high load periodically.(Ask me again, what did I change?) And after that the server would go down only about 4 to 10 times per day.Now, as far as I can tell, there is nothing more that would/should cause the server to go down.
About 30 minutes ago, before writing this post, the hosted sites were unavailable again, for about 30 seconds.I checked the load through ssh and I saw that the load is 3, so I went to the main server and checked the VPS ram and noticed that only 10% of the cpu is used and only 307Mb of available RAM is used.
Everything shows that the server should be functioning OK, but it still seems to get unavailable far too often.
I used the top command and noticed that there is nothing using the cpu and the ram and all of them are 0.I used the mysqladmin proc command and again nothing noticeably weird seemed obvious at this time. I also checked the other VPSes and they were also in relatively low-resource-consumption states(I don't understand this part):Also sometimes I use the top command when the load goes high I see that all of the users, even the non visitors users site use cpu seems forexample a refreshing things or updating thing updates all of the accounts forexample mysql or so Please help me to figure out what other things might be causing these service/server high loads and unavailability.
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Jul 30, 2011
What's the best way to move over 500 sites from a webserver with apache and mysql on the same server.. to a new server?
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Apr 3, 2010
After a recent CentOS upgrade, my PHP has gone nuts.About 50% of the time, the websites will show just fine from my web-server.Most of my sites are wordpress related; all have the same issue. Standard HTML sites load okay all the time, though.
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Feb 4, 2011
I used vmware to create a guest OS in vmware.The IP of Guest Ubuntu is 192.168.43.129 and that of host Ubuntu is 192.168.1.3
Here is apache log when I access the site on machine where it actually is (guest os) as http://localhost
the apache log shows
Quote:
127.0.0.1 - - [04/Feb/2011:22:18:29 +0530] "GET /some/templates/default/images/ButtonsBack.gif HTTP/1.1" 304 - "http://localhost/some/templates/default/delos.css" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.8) Gecko/2009033100 Ubuntu/9.04 (jaunty) Firefox/3.0.8"
[Code]....
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Apr 26, 2010
What client can I use on a MAC to connect to an openvpn server?
All the client s seem to use password connections whereas the openvpn server uses certificates.
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Feb 4, 2011
i'm finding that websites that require webcams like chatrt, omeegle, mebeam etc wont allow me to connect, it will say connect to server, or initializing and never pass this stage - is this an ubuntu flash/java issue or is it something else entirely?
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Jul 5, 2010
I have a dedicated server with two sites ie site1 & site2. We have two sites which need to share the same images folder, the situation is a shopping site (site1) with one category of products which we have decided to setup as dedicated site for (site2).
Our system uploads the images to site1 directory ie:/home/site1/public_html/images/image1.jpg
I don't want to duplicate the images into site2 images directory so is there a way of sharing them using the following url /home/site2/public_html/images/image1.jpg (which pulls site1 image)
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Feb 4, 2011
For some reason my DNS servers aren't able to resolve certain names. Most names resolve fine there are just a few that don't work. Nslookup doesn't work either of course, and curiously neither does "whois".
Here's an example:
Quote:
dig facebookmail.com +trace
; <<>> DiG 9.2.4 <<>> facebookmail.com +trace
;; global options: printcmd
[code]...
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May 19, 2010
i just implemented ur instruction n got success but i have one problem that i want to provide only two or three web sites access to groups in squid.
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Oct 22, 2010
I was just wondering what the best approach is to allow mobile device sites on my web server is?Its an apache 2 server running on Centos and I am just very curious as to how to best present a site just in standard output for a mobile site, ie no server side programming or scripts (but would like to do some eventually).I actually have someone asking for someone on his development team and would love to be that person with that attribute lol.
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Aug 13, 2010
When i starts it for the first time,my sites getting loaded fast when requested through browser,but slows down gradually. what could be the reason, my cpu load seems ok. Because i have another site hosted through apache in the same server and its getting loaded fast. so what could be the issue.
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Mar 15, 2010
i have different subnet running on my network they are 192.168.1.0 to 13.0, i want to restrict subnets with different sites. for example. from 1.0 to 6.0 i want to give them 3 sites to visit, for 8.0 give some different sites to visit. allow all traffic to 13.0 but block few sites for them. i want to use url_regex for this and place sites name in different locations.
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Jul 29, 2010
I need to run a 2nd instance of openvpn on my server so that it can run on udp. The current one runs on tcp and I need to keep that running. Apparently, I need to create a 2nd tun network for it to use - how can I do that? I tried starting a 2nd instance of openvpn but it just seems to hang.
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May 14, 2010
I have used search and google but i can't see to find an answer to this (if it's here please link and spank me for search-failing I admin a server that serves small (static) images as part of a bigger site. There is about 1 TB of images, but most of the are seldom accessedThe problem: Large cheap disks are slow and i would like to move the most accessed images to something faster (be it a server with faster disk in better raid or a machine with ram-cache or SSD or whatev). But how do i find the "top accessed files in period X"? Anyone have an idea? It's probably an obvious cat-grep-sed-mangle of something in /proc but i just can't solve it on my own.
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