I'm using NFS and I have the following problem. After ~100 days, the client and server lose connection, but the client doesn't know about this, it gives no error. The problem is that the changes on the server side aren't visible on the client side.
Running Linux Fedora 10 on an Intel Core 2 Duo PC. Runs great. We are trying establish VPN between a client and server on the same LAN. The network is a standard fast ethernet, run great. We are trying to install OpenVPN server, but having a little difficulty. Key and certificate builds seem to execute without a problem. But when we try to start the service we get [FAILED]. I've attached a copy of our procedure.
I have an Ubuntu server that is currently running Ubuntu 8.10. I was thinking of making it a VPN server for my iPhone and also for my laptop whenever I'm outside and need to access internet over insecure wireless networks. Now that part should be easy I found several guides on how to configure OpenVPN server, as well as enabling clients on iPhone, and OSX.
However, the things is that my server is currently a OpenVPN client also, I have a paid tunnel set up to bypass my ISP blocking incoming traffic on various ports. Is it possible to keep this setting but still enabling a VPN server? Essentially causing traffic from my external device to go in through my tunnel to the VPN server, and then out through the external VPN provider.
I'm using openvpn-2.0.9 with gui-1.0.3 which is set up on windows xp machines(for server and clients) when i set up the server and one client it connects well and i can work without a problem. but when the second client connects it gets the same ip address of the client1, so that both clients can't work at once.
my server and client config files are as follows.
I've tried by changing many settings such as server-bridge and all but couldn't find a solution for the problem.
By the way when connected server gets 10.8.0.1/30 and every clients get same ip as 10.8.0.6/30
I have the following problem:I have to networks in remote places.I have an opnvpn client in one network that connects to the the router (openvpn server).My question is,can i connect the network where the openvpn client is,throught the computer with the client to the other network.If yes,how? (please make it an idiot proof anwser because i have limited knowledge about iptables). I was thinking like forwarding (the router in the network with the openvpn client is also firewalling with iptables) the request of the ip class of the openvpn network to the computer with the client,which masquarades the interface
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
I have set up my Openvpn Server in Centos and it is working fine. Windows XP clients are able to connect the OpenVPN Server and access the network. This is a customized OpenVPN Gui Client. Now I need the customized OpenVPN Client for MS Windows 7Bit. I am using openvpn-2.1.4-install OpenVPN Client in MS Windows 7 64Bit. This is a executable and working fine in the said architecture. Now I want to compile this version. I am following the given steps at : [URL].. As per the direction i have copied the source from 2.1.4 and tried to compile, but compiled copy is giving the error " An error occurred Installing the TAP-Win32 Device Driver". I have tried this compilation by making every change and hack but all in vain.
I think that there are some certain steps which are missing and not documented any where. And sure that someone in forum will know the facts.
Calculating the available bandwidth methods IGI/PTR,PATHLOAD,SLOPS,PACKET PAIR...
I gone through above methodogies ,when i finish one methods(IGI/PTR) i came to know,one application should run in client side and another application should run in server side (i.e,) Internet Service Provider side,
In IGI/PTR method ./ptr-client.c & ./ptr-server.c is there .,if we want available bandwidth,I Should run ./ptr-client.c (in myside)correspondingly ./ptr-server.c then only we wil get a availble bandwidth...
My need is without run any application on the server side ./ptr-server.c like that,but I should develop the application only on client side (in my routerside based on linux)..
1:whether it is possible to get the available bandwidth run application in client side only?.if possible. how i implement the code in client side( only )for getting the available bandwidth ...whether any source code is available?...
i'm unable to see some musicvideos on videos in germany trough copyright restrictions. i can see these videos by using a tunnelservice, but it isn't very comfortable. in that case, i have to copy the url and paste it at the end of the tunnelservice url. a lot of stupid work.
my problem is, that i haven't enough experience to automate these actions.
i think, that i have to modify the url befor it goes to the server. there must be somewhere in the osi stack a place where i simply can modify that url with a regex but i don't know where
Calculating the available bandwidth methods IGI/PTR,PATHLOAD,SLOPS,PACKET PAIR...I gone through above methodogies ,when i finish one methods(IGI/PTR) i came to know,one application should run in client side and another application should run in server side (i.e,) Internet Service Provider side,In IGI/PTR method ./ptr-client.c & ./ptr-server.c is there .,if we want available bandwidth,I Should run ./ptr-client.c (in myside)correspondingly ./ptr-server.c then only we wil get a availble bandwidth...My need is without run any application on the server side ./ptr-server.c like that,but I should develop the application only on client side (in my routerside based on linux).. 1:whether it is possible to get the available bandwidth run application in client side only?.if possiblehow i implement the code in client side( only )for getting the available bandwidth ...whether any source code is available?
I would like to be able to mount a share served by my mac os X machine(10.6.1). I have read the Ubuntu community doc on Ubuntu samba clients.It didn't say what to do when using dynamic LAN I.Ps.I understand the way to go is to use avahi on the client side(Ubuntu) and Bonjour on the server side(mac os 10.6.1).I can't find anything about how this is done.What do i need to do to set up the client side(Ubuntu) to use avahi with SAMBA?.Because in the Ubuntu community doc it just referenced /etc/hosts, which is for static I.Ps.So i'm assuming that SAMBA on Ubuntu doesn't use avahi by default.All i need to know is how to set up the client side of SAMBA on Ubuntu when i'm using dynamic LAN I.Ps.
This is the first one of probably many posts as I am new to Fedora having lots of questions. This one is about the openvpn client which is used by me to connect to my company network. Thanks to the Fedora FAQ it was easy for me to set up the client and establish a connection. There is just one problem every time I open a connection I am disconnected from my local Internet. I was using openvpn on my Windows XP PC before and there was no problem keeping two Network connections, the (W)LAN and the vpn tunnel. Does anyone know how to solve this? I am utilizing the latest Fedora 11 release and configured openvpn client via the Network Manager GUI.
I am trying to connect to an existing VPN server that I have been using for years now. I am moving my develpment environment over to a Ubuntu box and I must have openvpn working in order to access SVN. It has been a few years since I have been setting up linux boxes. And networking is a soft spot for me. But
The server has been running without problem for a LONG time. A windows computer I have been using connects to it fine and I can access the network on this machine. I am setting up a new computer, but when trying to connect openvpn starts the initialization sequence completes but I cannot ping the network I am trying to connect to.
I use a second VPN connection to connect to an alternative network and it works fine. The difference between these two is that the working vpn connection is a routed IP tunnel and the one that is not working is a bridged connection.
The VPN that is working on this box brings up tun0 while the bridged connection connects but does not bring up a network tun device. The server logs look normal, it just looks like the client is not setting itself up to use the network once connected. (The key/cert pair work find when on a windows box) Just not on this new ubuntu build.
My current client config
cert firstname.lastname@example.org key email@example.com client dev tap
The server is using tap, as well as the working windows client uses "dev tap"
It has been a long time since I have been maintaining linux boxes but its coming back slowly.
I have a ubuntu 9.10 box that is acting as my firewall. ETH0 is connected to a cable router and my eth1 nats out it. I have br0 bridged to eth1 (private). I am able to ping from my openvpn client into my network but not from a boxon my local network to the openvpn client I watched the firewall and nothing is being blocked on any device. I checked the arp table on my firewall and it does not know about my vpn clients. Any idea's why my vpn clients are not adding themselves to the arp table?
I'm trying to set up a VPN connection between our CentOS 5.3 server at work and my bosses XP computer at home. At this point, we are kinda locked into Quickbooks. I'm testing the connection from my XP boot at home to see if it works. I can log into our servicemanuals easily enough from XP at home however, the windows takes forever to update. I have the Samba server only listening on port 445 because is seems to work more efficiently at work. I connect to the Samba shares via linux from home and everything works well but, when I try to do anything with the shares from Windows client at home, it's very slow!
I'm thinking that it must have something either to do with the Windows OpenVPN client or the client.conf file. Is there anything I should look at in the .conf file for answers?
I'm using Fedora Core 11 and the client OpenVPN on the network-manager into a segmented infrastructure. It works well.
My laptop is on a dmz wireless Zone 192.168.3.0/24 and access Internet through a firewall via a front-end zone 192.168.65.0/24 with wlan0 interface.
But my laptop can access on a back-end zone 192.168.2.0.24 to a server.
When I start the OpenVPN tunnel, I cannot access on my back-end zone because the kernel routing table is modified (all the traffic is routed through the tun vpn interface)
If I define a static route like route add -host 192.168.2.x gw 192.168.3.2 where x is my file serveur, I cannot connect to this server because the routing is make through the tun interface and not by the wlan0 who can access on is gateway
I want to know where changing the kernel routing table file to access on the Internet and on my back-end zone in a same time.
I have openvpn server configured with bridged interface on my openwrt router. The client is running ubuntu 9.10 with config:
Client dev tap proto udp remote x.x.x.x 1194 resolv-retry infinite nobind persist-key persist-tun ca /home/blwegrzyn/openvpn/ca.crt cert /home/blwegrzyn/openvpn/client1.crt key /home/blwegrzyn/openvpn/client1.key comp-lzo verb 5 (x.x.x.x was hidden)
When the client connects the log says: WRRRWRSat Jan 9 20:16:03 2010 us=332404 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway,dhcp-option DNS 192.168.1.241,route-gateway 192.168.1.254,ping 10,ping-restart 120' ..... Sat Jan 9 20:16:03 2010 us=343906 ERROR: Linux route add command failed: external program exited with error status: 7
The server is trying to push default gateway 192.168.1.254 to the client and the client is on 192.168.2.0 network as you can see the route addition fails with SIOCADDRT: No such process. This is because the tap interface does not have any ip and the route addition is not possible. The tap interface is not getting the dhcp address through the tunnel, not sure why (this works on XP). To fix the problem I must manually add the ip to the tap interface, and the default gateway, but then i must add dhcp server to resolv.conf to make it work and once I disconnect the computer does not know the old valid dhcp anymore and cannot communicate. Why openvpn cannot get the ip automatically? Why it cannot grab the dhcp from the tunnel? Is it related to the wireless card being managed by the network manager? This works perfect on windows machine (xp sp3).
I'm using OpenVPN 2.1 on Ubuntu 8.10 to connect to LAN behind an IPCOP server. Everything works fine except when I move across the tunnel files which are over 180kb, then I get UDPv4 : No buffer space available (code=105 surfing the Internet I've found post that suggest to increase these settings on the kernel
those have actually made a small difference, but not enough for uploading even an image over http. I guess that I can keep increasing those values till I'm not satisfied, but as I'm not sure on what I am dealing with, can anyone tell me if there's a rule of thumb? My machine is a laptop with a dual core processor and 2GB ram.
My network is barely functional. I'm running 2 linux servers connected by openvpn (tun) through routers on both sides. There are Windows clients (98 and XP) on both subnets. One server (ls3) acting as PDC for the domain. The Windows clients use the respective linux boxes as gateways. On the server side (ls3 which is both openvpn server and samba server), all the clients can read/write properly to shares on both sides. The problems are all on the client side. Share connections to the server side disconnect after a few moments.
Browsing on the client side windows machines is fine. I can see shares on the server side. Some server side files open and are readable, writable, other server side files will not open. Some samba logon scripts on the server side can be opened from the client side. Others open after a long wait to a blank file! Permissions on server side files are set to 777 for testing. If a file won't open or reads "blank", that doesn't change no matter how many times you try. A non-readable/writable file overwritten by a readable/writable one can be read and written to!
I can ping successfully from any client on either side to any other client by either ip address or workstation name. Firewalls on both side are set to forward tcp and udp traffic going to port 1194 to the respective gateway linux boxes. Iptables on both linux gateways are down for testing. I tried reversing the openvpn server/client roles with the same result; the same physical side of the network had the problem. On one of the windows 98 clients, I wiped out the networking configuration completely and rebuilt it from scratch. Same result.
One one of the windows xp clients, I tried to rejoin the domain. It went through successfully but the result was the same as above. The network was operating smoothly for several years until the client side dsl modem broke last week. It was replaced with a newer model and at the same time I migrated from a pptp connection to openvpn. How to resolve this, Is this something to do with openvpn? Is this a network hardware problem? Am I missing something in the port forwarding on the routers? My smb.conf files are ancient except I added interface tun0. I have never seen 2 files sitting next to each other in the same directory where one opens and the other doesn't!
I'm running Mandrake 9.2 on the client side and Mandriva 2008 on the server side. I have a Sonicwall firewall on the server side, a Westell 7500 on the client side. I note that during the modem install, the http port was opened to the linux box on the client side and the access log got huge over the weekend and I ran out of disk space until I closed it down and deleted the log. I tried a simple test while viewing /var/log/daemons/errors on the client side. From a windows workstation in the client subnet, I opened a dos window and tried to print a file located on the samba server on the openvpn server machine which I knew NOT to be problematic.
The file printed and there were no errors reported in the log. I repeated the test with a known problematic file. The file would not print. The errors log noted: Authenticate/Decrypt packet error: packet HMAC authentication failed I regenerated the static.key file on the server side and scp'd it to the client side and restarted both openvpn's. I checked for duplicate files named static.key on both sides. Same error.
I googled a lot but I didn't find anything about this. I have multiple accounts on the same ftp server (the server is not mine I don't access its configuration)
If I write ftp://hostname on the location bar it lets me login, but only allow me to be in only one account at a time. Putting ftp://hostname on the location again just opens the account I logged into and I'm unable to login to the other account to move files between them conveniently.
Is it possible to log into multiple accounts on the same server?
what is the best way here? I have like 5 servers, and I want my clients to access each of them, so in case 1 server is down, they can access remaining servers. Also, it will work like user1 chooses the server number and is connecting to a central database, then reply is OK, and he can connect to the server number he wished.
I have ovpn configuration files for Windows from SwitchVPN. They do not provide configuration files for GNU/Linux. They said I can extract the certificate and key files from the ovpn files, but I'm confused about how to do that.First of all, I don't know which Authentication Type to choose: "Certificates (TLS)," "Password," "Password with Certificates (TLS)" or "Static Key."
Second, I don't know what to put where from the ovpn file. I see a <ca> � </ca> section and a <tls-auth> </tls-auth> section, but I don't see how those correspond to any of the Authentication Types. "Certificates (TLS)" and "Password with Certificates (TLS)" require two certificates and a key, "Password," requires one certificate and no key, and "Static Key" requires a key and key direction but no certificate. When I connect to SwitchVPN in Windows, it asks for a user name and password.Here's an example of the ovpn files (certificate and key contents removed):
route-delay 3 fast-io client dev tun
how to get what I need from the ovpn files, and which Authorization Type to choose in the Network Manager VPN configuration GUI, and what to put in the blanks?