Networking :: Xauth Fails For Remote Client?
Jun 27, 2010
No sure exactly what the problem is here? I am trying to get a X app running from a remote site on my desktop. I am using this proceedure:xhost +remote host xauth on local host the get 'Cookie'.
scp Cookie to remote host
xauth merge Cookie into .Xauthority
ssh to remote.
export DISPLAY=local host:0
xfig
xfig fails with "Error: Can't open display: local:0"
If I start another X using '-ac' ( not authinaction) and put to local:1 , all is well.
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Oct 11, 2010
I'm new to this forum and pretty new to the Linux world. I'm currently working for someone and learning this as I go along and we want to be able to set up a machine so that we can display some kind of internet browser in a type of kiosk mode (without the fullscreen) on the gdm login page.
I've been able to find a browser to do that but we cannot edit how the gdm login screen boots to include the browser. I was told to try to see if I could remotely access said machine to start the browser on the same display as the gdm login which happens to use display :0. When I tried experimenting with xclock first, it would not let me run it on the same display short of me using xhost + command. I was told to try to use the xauth application to create my own authority file and allow permission but I don't know how to do this. I've tried several different combinations I've found on other forums and none seem to have worked.
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Apr 17, 2010
i have a udp server running at port 60178. when i connect to it from localhost there is no problem. when i use the client from a remote host i am not able to connect. I changed my server firewall settings[Fedora 11] and added "udp 60178" to trusted ports but still nothing happened. I ran wireshark and observed that packets are coming to the server machine but server returns a "Port Unreachable" ICMP message and doesnt give the packet to the application.
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Apr 14, 2009
I am using VNC to login to remote machine (vncserver). My question is; How can I login to remote machine (vncserver) through VNC client, without having to login to vncserver first physical. For better explanation here is an example: If john wnat to login to vncserver remotely first he has to login the vncserver physically then he can login remotely.
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Aug 12, 2010
I have a mate who runs the IT in his office. He has recently set up and secured the network but now has an issue logging in to the network from home. Here is the message I got from him regarding the set up and what he is having specific issues with.
I was really pleased with the results on my Pen Test; the office itself is a pure MS environment but the testers all use Ubuntu 9.10 to hack with. The main tools of choice are Nessus and Ophcrack with a bit of NMap. It's pretty scary what you can do with just these tools. I had a Wireshark trace running all the time and it's fascinating to watch how these guys crack open a system. The only really major change I've had to implement on my network is to force the use of SSL as a transport layer for our remote desktop sessions. This has forced me to start using MS RDP Client 5.2 because it can use certificates on the session. The problem I've got now is that the Terminal Client in Ubuntu can't do this so I can't remote in from home on my Ubuntu laptop.
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Jan 9, 2010
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).
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May 14, 2010
Both server (web01), in DMZ, and client (app01), intranet, are Linux OEL5.5.
A few hints follows:
1- I ssh to web01, in DMZ, from a intranet machine on my desktop, export my DISPLAY, and try to bring up xclock; nothing happens.
2- traceroute from web01 to app01 fails.
3- NFS mount from web01, nfs server, to nfs client, app01, fails.
How should my network configuration on web01 or app01 be to make this NFS mount from web01 to app01 work?Each server has 4 NICs, I've only used eth0.
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Nov 25, 2009
Is there a good terminal services client available I can connect to my Windows boxes from Fedora12? I am willing to pay for a commercial license if there is a good one
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May 13, 2010
I have a "friend" who hosts a couple of websites that I maintain. I have always used filezilla client to connect and update the files on the website.I lost access for a little while and he said that "The profiles had accidentally been dropped".He reinstated everything but now I cannot complete a log on session. I maintain several other websites which have the same PURE FTPd server at their end and I can connect to these OK.The delicacy of the matter is that, with no changes at my end, and my other sites working, logic suggests that something has changed at his end. I have very patiently worked through all his suggestions but to no avail.I can't suggest that he is at fault when he claims expertise in the field and I am a complete lamer when it comes to FTP.
I wonder if anyone would be kind enough to review the log on result below and see if they can throw some light on the situation for me.(I have anonymised the IP address and other information for security reasons)
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May 10, 2010
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
[Code].....
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Dec 3, 2010
I am at a loss. I can not access my work remote desktop via the terminal server client on my wired box running Ubuntu 10.10. My wireless laptop is able to connect right away once I established the VPN connection. The VPN connection is established on both boxes with no problems.
When I tried the Terminal Server Client on my wired boxed, it says it can not establish a connection. Yet my wireless box gets connected immediately!
I check the /etc/dhcp3/dhclient.conf and the /etc/resolv.conf to see if there were any differences, but they are essentially the same. When I have the vpnc connection, they both recognize it and I am able to ping the IP address shown when I do a "ifconfig" on the terminal.
What can be the problem? Anything I need to configure on a wired computer versus a wireless one? What else can I check?
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Sep 17, 2009
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....
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Mar 9, 2010
Firstly I remote login to a PC by telnet/sshAfter thatI type vncserver in the terminal.Then I gotvncserver: couldn't find "xauth" on your PATH.May I know what it is about and how to setup vncserver?
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May 6, 2010
xrdp
gnome
ubuntu 9.10
I have xrdp installed running on the PC. how to allow remote Linux PC to connect Ubuntu 9.10?
Do I need to install;
libcurl4-openssl-dev
libpam0g-dev
vnc4server
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Oct 6, 2010
Suggest me a remote desktop client i am using remmina but i cant get desktop for my solaris 10 ,i am using fedora 13.
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Sep 28, 2010
I am looking for a client/server application that can allow me to have remote GUI access (eg: VNC) but with the ability to use sound.
I see that TeamViewer has a linux application out now but for my company, it would compromise security protocol because it reaches out to the TeamViewer servers to do any work.
Basically, we have applications that require a GUI and we need to hear sounds from them if they throw an alert (the app is a monitoring tool).
We are running a VNC server on it currently and when our monitoring machine was on Windows, TightVNC was able to get the sound...that is not the case with any Linux client so I am wondering if there is actually one that exists.
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Jul 27, 2010
I wish to connect to MySQL using an ODBC connection and I'm using isql to test. On the server connection using isql to local host is sweet however the problem is the client.Okay my set up looks like thisOn the server /etc/odbc.ini is[MySQL-scopus2008]Description = MySQL citation databaseDriver = MySQLServer = localhostDatabase = scopus2008Por
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Feb 23, 2011
Is there a RDP client that supports version 7? I've been using rdesktop, but as far as I can tell it only supports version 6. The main reason is that version 6 doesn't support the Windows 7 Aero theme.
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Dec 14, 2010
I want to get the connected client MAC Address after accept() call. I can get the IP address of the client but i don't know how to get the client MAC Address in my this programme. Here I am Posting my Code.
#include<stdio.h>
#include<sys/socket.h>
#include<sys/types.h>
[code]....
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Jun 6, 2011
When I start up Evolution Mail client by any means (toolbar, applet or command-line) it starts up, but then the window turns grey immediately and freezes. I am forced to close it with the "killall" command.
I love the small mailbox in my toolbar (GNOME) and I don't want to lose it. I am concerned that removing Evolution by the Ubuntu Software Center will eliminate this wonderful tool. Otherwise I would re-install it.
I have made no changes to the mail client in months. My wife who uses Thunderbird on Windows 7 is still operating normally, so I do not believe anything changed on the mail server.
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Jan 6, 2011
trying to create a "local network" by directly connecting an IBM Thinkpad with Debian Linux installed on it to an Alix computer running Voyager Linux. I'm following a "how to" I found to create a music server, hence the requirement. My issue is I can't get a static IP address to be configured on the Debian machine.I've trawled the net and have found the instructions about editing the /etc/network/interfaces and have tried to do this. First I tried to get DHCP working so I could connect the Debian machine to the net and this proved successful. I edited the interfaces file to look as follows:
# The loopback network interface
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
Then I tried adding a static IP address to the machine. As this is a network purely between two machines I made up the IP addres and used 192.168.0.1 and used a NetMask calculator to give me a NetMask of 255.255.255.254 (I told the calculator there would be 2 machines on the network). I then edited the interfaces file as follows:
# The loopback network interface
auto lo
iface lo inet loopback
[code]....
I re-booted the machine (ifdown eth0 followed by ifup eth0 keeps saying that eth0 hasn't been configured - a problem there that I don't understand), but during boot up time it failed to assign the Static IP address to eth0 and made me go into SU mode. To fix it I simply replaced the interface file with the static IP inputs with the file that had the DHCP entries (I'd made a copy of the DHCP file), and re-started the machine. Everthing came up fine. So the first question is how do I get a static IP address to be assigned to eth0 such that whenever I shut down and restart the machine the static IP address is always loaded?
The second question is around creating the network via the cross over cable. From what I've found via Google, all I should have to do is create a static IP address on the Debian machine and a static IP address on the Voyager machine. Once they're connected by the cross over cable they should see each other. Is that correct, or do I have to do anything else?
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Feb 20, 2010
I have Fedora installed on a netbook. I customarily mount several NFS shares on this machine, from both a desktop system running F11 and a small server running FreeBSD. On the server side the shares are write-enabled. On the server side the shares are write-enabled. In the past this has worked fine.
However since upgrading to F12, my configuration no longer works as before. Reading from the NFS shares is no problem, but as soon as I try to write to one, either in Nautilus or from any other program, including on the cmd line, all hell breaks lose. Nautilus crashes, and I am unable to remount the shares. Usually rebooting the client is the my only recourse.
There are no clues in dmesg on either the client or the server. In terminal trying to remount a "trashed" share I see this:
Code:
$ sudo mount -v venus:/media/disk8 /media./disk8
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Sat Feb 20 17:34:59 2010
mount.nfs: prog 100003, trying vers=3, prot=6
[Code].....
The NFS versions under F11, F12, and FreeBSD are the current ones (all updates applied).
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Feb 26, 2010
I'm looking for a good bittorrent client that can be run via a remote ui or doesn't require x-server and a gui to function.
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Dec 14, 2010
I have written one simple code which is posted here. i want to fetch the Mac Address on socket descriptor which is returned after accept () call.
Code:-
#include<stdio.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
[code].....
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Aug 19, 2010
I have one headless squeeze and two notebooks (one squeeze, one lenny).
When I have X (on headless squeeze) on lenny notebook, it is unacceptably slow. Something like it takes 3-10 seconds to redraw window (acroread, iceweasel, possibly xterm.)
It is not so slow when I use squeeze notebook. Yesterday, I upgraded lenny one to squeeze. Then, it is not slow any more!
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Sep 15, 2009
How to setup remote control on Ubuntu 9 for use of windows client ?
Just for use in a home network.
I've had a computer for media files for a long time and now I changed from Windows 2000 to Ubuntu 9.
I the home network there is some Windows W2k and XP Home and I will use VNC or RDP for remote control of this Ubuntu desktop.
I've no experience of Linux at all and I've seen some notes about this with no luck.
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Oct 15, 2010
Running Ubuntu 10.04 to 10.04 over LAN; I can SSH -X into my server just fine, and am able to launch various applications (Nautilus, Gnome-Terminal, Disk Utility, etc) but I'd really like a Gnome desktop. When I've tried the various StartX commands and gnome-session, but something just isn't clicking. Is there a way to have a 'second' Gnome session running on the client over the first?
To pre-empt some obvious solutions; I don't wish to use VNC, the lag drives me nuts, and I'd like to keep my gnome session running on the client machine if possible. If it's not possible, that's fine; it just seems like there'd be a way to do it?
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May 1, 2011
I've added my public key to the remote machine's authorized_keys file, and I can ssh over without password. But when I try to mount the remote share using sshfs it -always- asks for my user's password. I have set sshd_config|PasswordAuthentication no
... and when I mount the share as root it says, "read: Connection reset by peer". My mount is being done as user, so it shouldn't be a root authentication problem:
sshfs#bill@droog://media/droogfuseuser,noauto,gid=6,umask=007,cache=no,ServerAliveInterval=15,reconnect,allow_other,comment=sshfs 0 0
I can't mount as user because /dev/fuse is not suid, and I'd rather not set it such.
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Nov 17, 2008
I'm following [URL] to build a mail server running postfix virtual. The server is now running able to send and receive mails. But remote mail client 'Evolution' can't login the server to send/receive mails.
# tail /var/log/mail.log
Code:
Nov 17 09:00:32 xen05 postfix/smtpd[6601]: warning: xen0.satimis.com[192.168.0.110]: SASL PLAIN authentication failed: authentication failure
Nov 17 09:00:48 xen05 postfix/smtpd[6601]: warning: SASL authentication problem: unable to open Berkeley db /etc/sasldb2: No such file or directory
Nov 17 09:00:48 xen05 last message repeated 3 times
Nov 17 09:00:48 xen05 postfix/smtpd[6601]: warning: SASL authentication failure: Password verification failed .....
Still fail: "Login authentication" and "plain authentication" same result.
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Sep 22, 2010
I have a fast computer in my office and I want the person using the slow computer in the same office to boot up and see the login window (gdm) and log-in from there into the fast computer and be able to use their session on the fast computer the same time I am locally logged in to the fast computer as a different user and session.Is this best done through XDMCP? Where is a good tutorial on how to set this up?
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