Ubuntu Networking :: PPTP Server Some Websites Don't Load?
Jun 24, 2011
Running Ubuntu 11.04 Server 32bit fresh install
I did this walk-through trying both iptables and ufw
I am able to connect to my VPN server using both windows 7 and Ubuntu desktop just fine, and using wireshark verify that all packets are being compressed and sent through the VPN tunnel.
Many sites work but there are several that will not load while using the VPN, one of them is ubuntu forums also sourceforge.
I can ping the servers while connected but the websites just will not load, and time out. The second I disconnect from the VPN they load instantly.
I'm trying to connect to a Microsoft ISA PPTP server from my Linux box. The box I'm connecting from is itself a router. I have no problem connecting a Windows XP machine to the VPN via this machine. This is fine, but I would rather connect via the Linux machine, giving me far more advanced routing options (i.e. no to send every packet from the XP box completely unnecessarily via the PPTP tunnel). The Linux router is running Debian Lenny.
I've checked iptables. There were initially some issues. I've fixed those.
Invoking pppd from the console, I can see that authentication succeeds, but then some negotiation goes wrong and the server terminates the connection. Here's the output from pppd, with the more sensitive stuff removed:
Code: <hostname>:~# pppd call <peer> nodetach debug using channel 19 Using interface ppp0 Connect: ppp0 <--> /dev/pts/2 sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xe3e45f75> <pcomp> <accomp>] code....
I don't think I changed anything in my system's configuration, but I wasn't able to access most of the websites. Some loaded perfectly, but for a vast majority of them, Firefox (And every other GUI browser - I tested Opera and Chromium) just showed me a never-ending loading screen. At first I thought it was my ISP, but on the same computer when I booted up Windows XP, everything worked fine.
I then booted Ubuntu back and tried pinging the nonaccesible domains - and they all work! Even weirded - for some of the domains the page's title gets loaded, and nothing more - even in something like 30 mins time. For some, I just get "Loading..." message. And some, as said earlier, work just fine. But I can ping all of them. I wanted to ask You about that issue, but ubuntuforums.org didn't even load. I then tried to use CLI browser links and it works just fine for all my sites and here I am, writing this topic from CLI mode in Terminal.
I'm a first time poster and new to openSUSE. I've had a small amount of linux experience and even studied UNIX a few years ago - unfortunately, to paraphrase Homer Simpson, "as something new enters my brain something old has to leave". In this case nearly everything I learned about UNIX
Anyhow, ms problem is this. I've installed 11.2 with KDE desktop. Using either Firefox or Konqueror browsers, I am finding it impossible to display any webpages, other than Google. All google websites, such as gmail, calendar and searches work perfectly. Unfortunately, I can't directly enter a url into the address bar nor can I link from a google search.
I've hunted high and low for a solution but have failed to find one.
This is sorta a strange problem as it also happened in Windows Vista as well, one of the reasons I tried out Linux was to fix this problem (then fell in love with it and didn't go back).
Anyway, problem is that when ever I start downloading a torrent, no matter what speed the file is downloading at - fast or slow, as soon as I open a browser and then load a website it's like my internet connection has died. "Chrome was unable to find the website" "Firefox could not load this site" ect ect.
The torrents will still keep downloading/uploading, instant messages programs still work, but websites will not load.
I'm having a weird problem that I'm hoping someone can help me with.
First some specs: F13 NetworkManager Applet 0.8.3.998 Driver r8169 Opera 11 and Firefox 3.6.16
Recently my ISP switched to PPPoEand since then my internet connection has been giving me problems. While browsing, some websites load fine, some websites load fine after I refresh once or twice, some load really slowly and the formatting tends to be messed up and some websites won't load at all (they stop at waiting for website...). Ping for all of these sites is however fine. Also uploading and downloading either from sites like rapidshare or using torrents is also fine. The same ISP also provides a second similar connection which is connected through a wireless router (mine is connected directly - no modem or router) to two computers (one via a wired connection and one through wireless) both running Win 7 and everything works fine over there.
Things I've tried. I tried using the router changing it's setting to my connection and connecting through that but the problem remains. After googling I thought it might be an MTU issue so tried this:
Basically i just downloaded and installed Ubuntu 11.04 and i love it, however all websites wont load except for ubuntuforums.org and google.com which both seem to load instantly. Any ideas?
BTW i am connected to the internet obviously and i am also writing this on ubuntu. I don't understand why this is happening because all websites seem to load on windows and the package installer seems to work fine.
First some specs: F13 NetworkManager Applet 0.8.3.998 Driver r8169 Opera 11 and Firefox 3.6.16
Recently my ISP switched to PPPoEand since then my internet connection has been giving me problems. While browsing, some websites load fine, some websites load fine after I refresh once or twice, some load really slowly and the formatting tends to be messed up and some websites won't load at all (they stop at waiting for website...). Ping for all of these sites is however fine. Also uploading and downloading either from sites like rapidshare or using torrents is also fine. The same ISP also provides a second similar connection which is connected through a wireless router to two computers (one via a wired connection and one through wireless) both running Win 7 and everything works fine over there.
Things I've tried. I tried using the router changing it's setting to my connection and connecting through that but the problem remains. After googling I thought it might be an MTU issue so tried this:
ping -M do -c 3 -s 1464 www.myce.com and got PING myce.com (212.204.237.148) 1464(1492) bytes of data. 1472 bytes from www.myce.com (212.204.237.148): icmp_seq=1 ttl=47 time=129 ms 1472 bytes from www.myce.com (212.204.237.148): icmp_seq=2 ttl=47 time=129 ms 1472 bytes from www.myce.com (212.204.237.148): icmp_seq=3 ttl=47 time=130 ms --- myce.com ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2133ms rtt min/avg/max/mdev = 129.261/129.683/130.044/0.436 ms
This works for various websites whether they load or not. My MTU is set at 1492 but I've tried various lower numbers all the way down to 1300 but no luck. I tried disabling ipv6 in Firefox but no change.
eth0: 62.2.2.x (public on the internet) GW: 62.2.2.1 (cisco router)
i want to configure my ppptp server to allow users access internet with their own public ips of class 62.2.3.0 62.2.4.0 62.2.5.0
every time i configure my server all users can get thier IPs but they only go out with my server IP same as NAT not routing.
can you show me the proper configuration to make my users connect with public IP and have internet access. use specific DNS ( i did this but some users can not brows by DNS)
is there any way to specify an expired date for each pptp user.
I'm having a problem loading websites after a yesterday's "yum update" on F13. Before that everything worked fine but now when I open a browser, websites only load for about 2 seconds, after which any website I open just goes into a constant loading loop. I tried disabling the IPv6, as some threads suggested but it didn't help and pages still won't load. It happens on Opera and Firefox, so the problem seems not to be browser related. The connection is fine too, as I it works ok under Windows.
I reinstalled fedora the other day, and it's been working just fine, apart from the internet. It shows that I have a full connection with the wireless network, but it's really difficult to actually load a page. 80% of the time it just fails and shows "Page Load Error". It's really frustrating because it is connected to the internet. In fact, the icon in the address bar even loads from the site I try to access, but websites just will not load.
I've tested my wireless internet with another laptop which is running vista, and it works perfectly on that. Also, I'm running Fedora 10 on an Acer Extensa laptop.
Tried to install pptp vpn server via webmin, and I tried connecting remotely from my laptop, but it keeps failing on the verify username and password - I get a error 778 it was not possible to verify the identity of the server. Not sure what could be wrong with the config..
I have been wanting to switch from my routers VPN to my headless linux box VPN. I have everything setup in the PPTP and then forwarded the ports to it. Heres the kicker. My APPLE Iphone connects to the VPN without a problem at all. Views Intranet pages etc.
My Windoz XP is kicking and screaming and one error after another. This is my setup on XP: I entered Ip Entered exact same credentials as used for connecting with my iphone turned off "use gateway on remote network" Changed type to PPTP VPN connecting my xp machine to this PPTP server on linux?
I've got a FC PPTP server up and running but can't connect to it using VPN. I'm using NetworkManager but the connection fails each time. On the server, I'm seeing the following in the /var/log/messages:
Quote:
May 8 16:37:05 li99-23 pppd[2113]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so is for pppd version 2.4.3, this is 2.4.4 May 8 16:37:05 li99-23 pptpd[2112]: GRE: read(fd=6,buffer=8059780,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
[Code].....
Ive checked that the name,passwords all match, which they do. Has anybody seen this before ?
I'm trying to get a pptp server up and running. The server starts just fine, but encounters errors when a client tries to connect.
Code:
CTRL: I wrote 32 bytes to the client. Dec 29 23:27:48 frankenstein pptpd[9402]: CTRL: Sent packet to client Dec 29 23:27:48 frankenstein pptpd[9403]: CTRL (PPPD Launcher): program binary = /usr/sbin/pppd
[code]....
I assume the failed read line is the culprit. I am currently running on a test machine. There is no firewall. I read on this error points to a firewall misconfiguration, but there isn't one.
I'm trying to use a vpn server which uses pptp. I've set up pptp as per the Debian Howto and it seems to be working, but I'm not actually acessing the net via the server.Not sure what info would be useful but here are route -n and ifconfig.Can anyone suggest what is wrong here, and how to test if the vpn link is actually working?
I'm attempting to get 10.04 to connect to an SBS 2003 pptp vpn server, but for the life of me have been unable to find or implement a working solution. System previously had 8.x and 9.x and had no difficulty connecting to same server, but on a fresh install of 10.04 cannot connect.
tail -f /var/log/syslog shows the following:
Code: Sep 10 15:19:32 ubuntu NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'... Sep 10 15:19:32 ubuntu NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started
I'm running an own PPTP Server, but I can't get it to access the internet. All my PCs at home run in the 192.168.0.0/24 net, the PPTP Server has local IP192.168.0.5 and remote IP 192.168.0.80-99. The router to the internet is at 192.168.0.1, and the IP of eth0 on the machine where the pptpd runs is 192.168.0.4. I want to be able to connect to the internet trough that VPN and access my local LAN servers (which works fine so far). I can ping internet and local IPs successfully, but can not access them with a browser, or connect to them in any other way. I have 'accepted' all in/output and forwards.
I am running a Squid proxy on the same machine, and if I do: iptables -t nat -A PREROUTING -j REDIRECT -i ppp0 -s 192.168.0.0/24 -p tcp --dport 80 --to-port 3128 I can access the internet through Squid, but of course Jabber/ICQ etc. Won't work then because it just refers port 80. But I want the PPTP Clients to connect to the internet directly, if I don't use that rule it's not possible to load any pages. But pinging works all the time. DNS is also working fine, but I can't even access webpages via IP directly. How can I allow the PPTP IPs 192.168.0.80-99 to get direct access to the Internet with Iptables?
i have firefox mozilla Version 3.6.17 i checked a few places and it says to delete my cookies and cache helped a little but still no good. I then turned to networks settting and put on no proxy, still nothing. So i downloaded another web broswer called epiphany, I am still not able to get on the websites that arent working on mozilla. On the other computers used in the house...all the websites work perfectly fine so its not the server.
I am trying to connect to a windows 2000 VPN server at work, with my current settings in DOES connect to the VPN and i can ping the domain server which is 10.1.1.2 but the first issue is i cannot ping the other computers on the network(via hostnames) can't remember the ip address of the other machines . second issue is when the connection is established and i RDP into 10.1.1.2 ok great i am connected to the server but any interaction in the RDP session even moving the mouse on the screen kills the session and the VPN connection fails.
Running Ubuntu 10.04 LTS 64Bit
Image of current settings in network manager:
Syslog:
Code: May 11 12:08:04 oliver-desktop NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'... May 11 12:08:04 oliver-desktop NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started
recently i rent a xen vps intended to setup a PPTPD vpn server for me and my friends. so we can by-pass the great firewall in china and get back on ....., facebook and stuff. i have already setup the server and i can connect to it without any problem. but i still want to do some further configuration the server:
1. i want to limit the bandwidth to 400k/s per connection. 2. i also want to limit the max connection per user a/c
i have some thoughts on the 2nd requirement. in the user configuration file of /etc/ppp/chap-secret, you can specify the range of ip the user can get, does it limit the max connection per user a/c? or they can connect anyway, just every now and then a box pop up says conflict in IP address?
I am in serious situation involving PPTP protocol VPN in Debian 8 Jessie stable. I recently became a paid VPN subscriber. Using PPTP; Is there a way to automatically route all traffic through ppp0? Im getting the vpn service killed (ip address goes back to normal unmasked state) whenever there is a power outage (modem reset) and there are alot of those where I live, Im going to get astabilizer and I need a software solution for the situation as well. Theres gotta be a way to route all traffic through the VPN route ppp0 . I tried adding persist and maxfail 0 to the pptp config file but it did not do what i wanted.
On a second note, its clear to add that I basically need a way to also auto load the line
pppd call blabla.net and route add default dev ppp0
On system startup by default so the computer does not use "Wired" connection ^at all^ when not through ppp0. Any other way of not losing VPN anonymity ever due to hardware malfunction.
Is there a way to do this? Ive looked on the net and everything seems like its either from the nineties or can fry my pc , Im no debian expert, less than a year at linux..
Need it to use wired only if ppp0 is being used so if its no vpn, no connection at all period,
I have freshed installed lucid.Linux ubuntu 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64 GNU/LinuxThe problem is firefox is very very slow to open web sites.
I just installed Ubuntu 9.04 on my dell latitude. i have the Intel 3945 wireless adapter. It finds and connects my wireless router fine, and it will bring up web pagers initially, but after about 30 seconds i loose access to the web. i keep my ip address and and all the connection stays the same however i cant load any web pages and i cant download or check to see new updates so i know its not just Firefox.
I've just installed openSUSE 11.3 for the first time on a Dell E1505 notebook and am having problems connecting to my home wireless network. Using the Network Manager I've been able to find my home network and connect after entering the network password. After a minute or two the wireless network is still shown as active but their is no connection (websites will not load).
I'm completely new to Linux so I have almost no clue what could be causing this. I have tried connecting the notebook hardwired (Ethernet) to the router and get a perfect connection if that information helps any.
I'll preface this by saying i'm by no means an expert on Linux. A competant beginner at most.We have a dedicated server, the 'resolv.conf' was changed, specifically the domain that was listed (this is the primary domain).I only became aware of this change, when we get into work on Friday and all our sites were down - I attributed this to DNS fault as if I changed my host file (I work on a windows machine) and specifically routed to the domains to the correct IP address, the websites were served fine.I tracked down the resolv.conf change by quizzing a collegue. I then switched the resolv.conf file back to it's original state - luckily a backup was made so I am 100% sure that the current resolv.conf is the correct one.
change was made Friday morning, around 9.30am (UK time). It is now 5.05pm (UK time). The original change was made sometime on Weds afternoon, and the sites stopped serving between Thursday night and Friday morning.Does anyone have any idea how long it should take for the fix to be picked up? Will it be picked up? I just started to think that the change can't be picked up due to some DNS related voodoo.
