Rviz Cannot Connect To X Server

PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused xhost: unable to open display "localhost:10. This is mainly happening in recent releases of Mac iOS 10. New Email sent failed from your iPhone, iPad mail app. Same problem as previous posts. Choose your local package directory, your download folder for example, and hit next. You receive the following message after entering a command to bring up a graphical window. Until this feature gets implemented, we use auxiliary scripts to read and publish files' content. Windows cannot detect Proxy server settings. If you are logged in as a different user, you may need to obtain the xauth cookie from the desktop session's user account. However, in this case the X server was on the other side of an SSH tunnel from the machine running the Docker container. I've installed and configured Gmail correctly but can't send mail. Right Click on Windows 10 Start button and click on Device Manager from the Menu that pops up. Hello, I tried to install PMM after suggestion to migrate from mongodb_exporter to PMM. com and wanted to blow my brains out when I saw the complex and potentially dangerous solutions, probably all written by 20 something techno geniuses. Would someone have an idea ? Thanks in advance, Laurent. What protocol is it expecting. To install a minimal X11 on Ubuntu Server Edition enter the following: sudo apt-get install xorg. when you're logged in remotely (but the number can change depending on how many X connections are active). Here are the commands and returns: python script ** ETE: cannot connect to X server ***I googled some methods and tested them. 0"? I did a fresh installation of Jaunty on an AMD64 system with an NVIDIA 6-series video card. C++ API wrapper for displaying shapes and meshes in Rviz via helper functions that publish markers. Enable VNC viewers may control screen with password:. It makes sense, but contradicts many guides I have read which say it should launch on my local machine. Xauthority file. Would someone have an idea ? Thanks in advance, Laurent. Check your router to see that you have a good connection. To have mongodb_exporter I was doing:. I can connect to the remote machine by changing the nomachine port to 4444 and specifying localhost but I only get the NoMachine screen listing users where I see one user listed, when I disconnect it it disconnects my own session. So you don’t face this issue while running “startx” as root user. Step 2 Select the Gear Icon > Settings > Enterprise Environment Integration > Directory Service. 1 and SAP content servers. This custom visual needs 1- X-axis as the first variable 2- Y-axis as the second variable 3- Color (categorize variable) for the third axis To use this chart, you Read more about Scatter RViz: Power BI R Custom Visual […] Posted in RVIZ Tagged RVIZ Leave a comment. [Xrdp-devel] cannot login anymore: X server -- no display in range is available. I have Kubuntu Natty, with ATI graphics, KDE 4. Cuda, however, will be done on the nano. X Window System Server for Windows. I have done all the steps but the switch isn’t turning on… Also on GNS3 Server the “host binding” ip address doesn’t match that of the ip address of where switch images were loaded. foam" in a regular OS X terminal or do we touch it i. X server is a windowing system for bitmap displays, common on linux operating systems. exe,安装完成后并运行,修改终 端的设置,在SSH中如下: 重启SSH,并运行bochs。. call(srv) is blocking, so RViz is hanging until I get an answer from the server. You may have to register before you can post: click the register link above to proceed. I have an Owncloud server on a shared hosting site. Couldn't start X server on card 0 Couldn't start X server with old config, trying with a fresh configuration Couldn't start X server on card 0 Error, failed to start X server. 1 and Emulate Cisco Switch in GNS3-1. 解决server显示问题/cannot connect to X server 1,mac下载XQuartz,安装 2,如下图打开终端 3,设置粘贴板 偏好设置-输入-勾选模拟三按键鼠标 偏好设置-粘贴板-勾选启用同步 偏好设置-粘贴板-勾选粘贴板改变时更新PRIMARY 4,连接服务器 ssh -X [email protected] 5,粘贴命令 按住option时. Beginning from Windows 10 Creators Update, Windows PowerShell is the default option that appears on Win+X menu (also known as Quick Access Menu, WinX Menu or Win+X Menu) when you right click on Start button or press Win + X keyboard shortcut (if you upgrade, your original setting of using Command Prompt may stay). To access a remote display, you need to set an environment variable. The pop-up says that the Mail app cannot verify the identity of the mail server you're trying to connect to. From my another Fedora 20 machine, I was able to connect to and run GUI programs from the target machine with ssh -X and the same username. X has an authentication mechanism, which decides whether a client is allowed to connect to a server. The server is OpenSuse 11. Select Profile Manager from the Server pane (Figure A). In this article, I'll explain why your iPhone "cannot verify server identity" and show you how to fix this problem for good!. - Second off if you are on windows then you need to run an X server the to be able to forward X traffic to. Having a full desktop environment and connecting over VNC might work, but do keep in mind these droplets do not have a GPU and would therefore be likely to perform quite poorly with it. Next, you will do a small exercise to learn about custom visualizations in RViz. 1 - Virtual Center Client was cleanly installed (vpx-iupgrade) and Virtual Center Service is starting (vmware-vpxa). xserver(1) - Linux man page. Ask Question cannot connect to X server cannot open display while running command-line-only script. NOTE : You cannot connect to resources on the remote network because you have disabled the Use Default Gateway on Remote Network setting in the VPN TCP/IP configuration. Q-18: When I start x11vnc on an Alpha Tru64 workstation the X server crashes! This is a bug in the X server obviously; an X client should never be able to crash it. xhost: cannot connect to X server. [Xrdp-devel] cannot login anymore: X server -- no display in range is available. An X program needs two pieces of information in order to connect to an X display. Here's an interesting little problem. When i try to run the command avogadro I get the next error message avogadro: cannot connect. You may have to register before you can post: click the register link above to proceed. It consists of a VNC® Server app for the computer you want to control, which must be licensed, and a VNC® Viewer app that you are free to download to all the devices you want to control from. Hi Michele, What steps did you took to change the time? If from your computer you connect to the XenServer using https on your browser (https://XENSERVERADDRESS/), can you see the ISO download page or does the connection fail (this is a good test, because it will use the same certificate as the XenCenter connection)?. I’m running Ubuntu 12. Ask Question cannot connect to X server cannot open display while running command-line-only script. When the Converter Standalone server is running on a machine with the English version of Windows, and East Asian languages support is not installed on that Windows instance, if you connect to the server with a Converter Standalone client that is localized in Japanese or Simplified Chinese, the tool tips on the Advanced options pane of the. Once connected via Ethernet, login that way using your network account first. keepassx: cannot connect to X server $ keepass2. Launching applications from terminal cannot connect to Xorg/X Server. It was written for several reasons. When I try to launch the remote control with TightVNC, I get the "Failed to connect to server" message, and I can't take the control of the remote host. My Kindle says that it cannot connect to server (unable to open connection to SMTP server) Can receive email but cannot send email. However, this time it says Remote share couldn't connect to network server. Otherwise, the X applications you lanuch with the new user will not have the authority to connect to your X server. This will fail again with "Cannot connect to the server. Does somebody know what could be the problem? I’m running Jenkins (for the moment) on my localhost and I don’t know if I have a graphic server. VNC ( Virtual Network Computing ) Your workstation ( Linux or Windows ) is only displaying a copy of the display ( real or virtual ) that is running on the remote machine. Then, some number of VNC viewers can connect to the VNC Proxy to use the DMX display. MS Server 1 (for testing) - VLAN 3 (192. Patiently wait. Try to log in again. Client cannot connect to X server :0. 6 Ghz dual-core Zotac ION-ITX with 4Gb RAM. Remote X Windows connection is using the TCP/IP. graphic drivers have moved from. TF: c++ •Each node has its own transformListener –listens to all tf messages, calculates relative transforms –Can try to transform in the past Can only look as far back as it has been running. 14 version of Xvnc fixed the problem. Rviz is the primary visualizer in ROS and an incredibly useful tool for debugging robotics. Then we publish the pose as a arrow for visualziation in Rviz. 7-2 Connecting to Universal Connect/X. Andy Hopper, Chairman, RealVNC. Check your router to see that you have a good connection. I opened the bash console from my Files page, which includes the Python file (gui. Allowing Remote Access. I'm having the same difficulty as the one expressed here: Cannot connect to X server using docker on OSX I'm very confused about the recommended instructions in the above link (I'm a novice on doc. To connect to an AppleShare server: With the Finder active, from the Go menu, select Connect to Server Alternatively, with the Finder active, press Command-k. Unable To Connect to Server Error: Here's How To Fix The first step of the process is to check the health of iCloud's server. Patiently wait. Agents of version 7 cannot connect to ERA 6. When you know how to config the font server, then you just add the call to start the server in xstartup And then you tell your x-server to use a font-server instead of a font-path. Apple Mac OS X connect to SMB (samba/CIFS) share. Then hit next, select “Install from Internet”, hit next. I can do a connect to the Server, it finds the Server name and Vms and progress goes to 84%. I can connect to the remote machine by changing the nomachine port to 4444 and specifying localhost but I only get the NoMachine screen listing users where I see one user listed, when I disconnect it it disconnects my own session. Like the original VNC Reflector, the VNC Proxy can also be used to reduce the workload of a VNC server when servicing many VNC clients. And the XMing server was running and the X11 forwarding was enabled in putty, like the instruction here. As the Internet has become an increasingly hostile environment, it has become good practice to only open up services to the Internet when they are really needed. How to Use MobaXterm to Connect to a SECS Linux Server Before you start Youshouldhavethefollowinginformationbeforeyoubegin SERVER_NAME. At this point, you have set up an NFS server on your CentOS server. AirServer can transform a simple big screen or a projector into a universal screen mirroring receiver. Mac OS X Server includes a robust suite of mail services that make it a powerful solution for organizations looking to host their own email, webmail, and mailing list server. When I boot Kubuntu, it just starts a CLI instead of booting the desktop environment. Are the two computer in the same networking environment? If so, please first make sure that the internet connection is fine and stable. (For details of how to create SVF server settings, see "2-3-8 SVF Server Screen. This is bi-directional - you can do it from the VPN Client or the VPN Server. systemctl start qt4-x11-demo. issue_name ,m. You may have to register before you can post: click the register link above to proceed. Firefox cannot load websites but other browsers can. Turtlebot 2 with a WidowX arm: first steps. 14 version of Xvnc fixed the problem. sh" it returns with "failed to connect to server". Hello, I tried to install PMM after suggestion to migrate from mongodb_exporter to PMM. When you try to open the iTunes Store, App Store, or the Book Store in Apple Books, you might see a "Cannot connect to iTunes Store" alert message or something similar. Try for FREE. I copied the ca. Also use the `xhost' program to verify that it is set to permit. emacs: Cannot connect to X server :0. From a "Run as Administrator" command. I was surprised at first since I was hundred percent sure that I've a connection. pem, client-key. If you are an administrator on the remote computer, you can disable NLA by using the options on the Remote tab of the System Properties dialog box. Access the settings to connect to your enterprise LDAP directory. For example, you connect a Linux computer with a running X-Server to the network, then on that computer execute the command "sudo xhost +". cannot connect to X server localhost:0. Log In Register Lost Password. You check and find that everything else seems to work fine, as usual. Configuring a Windows X Server. @zahrahoda, Zahra Hoda , Make sure your device is charged before attempting reset and then powered off. This contributes to an administrative nightmare for an enterprise system. Now when I try to login I see a very small blank minimized Origin window, then after ~20 sec, it brings back the login windows with the message "Could not connect to server, please try again in a few minutes. Finally, an xorg group is also available, which includes Xorg server packages, packages from the xorg-apps group and fonts. Then we publish the pose as a arrow for visualziation in Rviz. Update your Acrobat to the latest version, and check whether the problem is resolved. This will fail again with "Cannot connect to the server. After editing the urdf or xacro of a robot variant in any of the robot support packages in fanuc or fanuc_experimental and updating the MoveIt configuration package to match, the provided kinematic solvers (in a fanuc_X_moveit_plugins package) cannot find any solutions to IK problems, or solutions returned do not appear to be correct. [ INFO] [1511197994. I have Kubuntu Natty, with ATI graphics, KDE 4. I get 2 slightly different errors depending if I specify the FQDN or IP address for the connection. New PTC Customers & Partners. AirServer can transform a simple big screen or a projector into a universal screen mirroring receiver. You must use the VMware Server Console to create and configure virtual machines. cannot connect to X server :0. You will see an alert telling you that you are not connected to a server directory node, to which you can simply click OK. The problem is that the map is always shifted (the centres are not the same ) The centre of Rviz grid is the left down corner of the map image ( the image only occupy one quarter of the grid). Like a web server, which waits for web browsers to connect, or an ssh server, which waits for remote logins, the X server waits for X clients to connect. Maybe you don't realize, but a program you run in Linux is the X Windows client. Post the guests log file (as an attachment) See Online Users Manual for the location of the file. : cannot connect to X server. You check and find that everything else seems to work fine, as usual. Where can I check if I’m using a graphic server in Jenkins?. This is mainly happening in recent releases of Mac iOS 10. What i dont get is that i made a network recording of eth0 from the worstation ( tcpdump -i eth0 -s 0 -w /tmp/output. -y Y Offset in y direction. Once you've installed and set up Apple's OS X Server, setting up Open Directory is the next natural step. systemctl start qt4-x11-demo. 'Cannot connect to App Store' notification. Each time unit account for 8ms of time. The OpenVPN application can run as a server allowing for remote client to connect to the Untangle server, and the OpenVPN application can connect to other remote Untangle servers as a client. Note that I can start the browser (and everything works fine) if I run this:. Note that you must start X Server even if the Java application and the database are located on the same computer. If the mail server is different from your web server (i. Xming had no display when I executed the command startx and I found that KDE connected to the X server in the FreeBSD system, not my xming server. What i dont get is that i made a network recording of eth0 from the worstation ( tcpdump -i eth0 -s 0 -w /tmp/output. If you have this problem after some time when running with -X arg. Trying to set up this module to work with gmail. To change the FileMaker Server license of an existing deployment: 1. I also got and compiled the latest version of X11rdp from the SVN server. 2 and fglrx driver. Cannot connect to X Server when running app with sudo. My guess would be that you don't have an X server running. Join Facebook to connect with Joszef Rviz and others you may know. Make sure that the SSID: field is set to be the name of the network that the robot will have a static IP on. Preparing a NetBeans base image was not that straightforward since we need to install some additional dependencies (namely the libxext-dev, libxrender-dev and libxtst-dev packages) in order to get it to connect to the X11 socket properly. I'll get some other people to try the running the bat file, the two that tried are brothers and might have the same thing proventing the bat file to work. On third party custom domain email setup with mail app some time create critical issues, So you don't send Email to any third party recipients. And the XMing server was running and the X11 forwarding was enabled in putty, like the instruction here. Note: this should "just work" if your ssh session is logged in as the same user that started the desktop session on the X server. 04 LTS (Desktop) but failed on remote server which ran Centos 6. An X program needs two pieces of information in order to connect to an X display. The affected types (. I'm trying to run a remote script by creating a remote interpreter configuration in the project settings. It is fully featured, small and fast, simple to install and because it is standalone native Microsoft Windows, easily made portable (not needing a machine-specific installation). com uses the latest web technologies to bring you the best online experience possible. It needs the address of the display, which is typically :0 when you're logged in locally or :10 , :11 , etc. Funny thing is it worked up until this week just fine. Learn most probable causes for Cannot. rviz (ROS visualization) is a 3D visualizer for displaying sensor data and state information from ROS. I've seen a lot of these hints on the Internet, but most of them didn't work for me. Completely close and re-open whatever app you’re using (App Store, iBooks, iTunes Store, etc. Completely close and re-open whatever app you’re using (App Store, iBooks, iTunes Store, etc. It indicates where to find additional hints and tips for all z/OS Communications Server TCP/IP users, and for a number of widely used z/OS Communications Server TCP/IP functions. I also tried sudo kate I get cannot connect to x server 0. If you use a proxy server, make sure that the proxy server can connect to the Internet. So, check if you have enabled the Wi-Fi or cellular network from Settings. Many questions have appeared on usenet on how to run a remote X application. C++ API wrapper for displaying shapes and meshes in Rviz via helper functions that publish markers. rviz Note: -X (upper case) enables X11 Forwarding whereas -x (lower case) disables it. On a second computer with Debian 7 I folllowed the instructions on the Opensuse site, but this installation is not going as well as the orther one. Gmail and Outlook accounts work just fine. X in Start|Run to display the shares on the remote machine. To connect to these databases you must first install the corresponding DBMS client utility software available from your database vendor, in the cases it is needed. I have installed Ubuntu Server 16. Unhandled Exception: Could not open display (X-Server required. Using X server. Paolo rossi logic and the art of memory pdf primer. I’ve installed gromacs and avogadro. Would someone have an idea ? Thanks in advance, Laurent. If anyone knows how to do it, it would be really helpful. These instructions perhaps should be added to INSTRUCTIONS. Windows cannot detect Proxy server settings. Andy Hopper, Chairman, RealVNC. For example, you connect a Linux computer with a running X-Server to the network, then on that computer execute the command "sudo xhost +". It shows three terminals. This HOWTO shows you how to configure VNC using the 'vncserver' service as supplied by CentOS. What i dont get is that i made a network recording of eth0 from the worstation ( tcpdump -i eth0 -s 0 -w /tmp/output. Movies where streamable, and I can play music and do other stuffs but that repo wouldn't just Install. Where can I check if I’m using a graphic server in Jenkins?. Jon Pattison. It assigns different devices on your home network with unique IP addresses. Make sure that you have entered the correct IP address or domain name information. The X Window System is usually started as an X session which is the combination of an X server and connecting X clients. A brief description and tradeoffs for each method below: The first listed is simple, but unsecure ; The second is safer, but non-isolated. The last step is the actual comparison that displays the result in an. I guess this is about it trying to create an X window session, on my server? Is it possible to just switch this behaviour off? All i need are the image files for output i don't need it to open an X window session. Yes, it is the local display, but by default only the user who started X can access the display for security reasions. Known Bugs and Issues. A tunneling protocol is a network protocol which encapsulates a payload protocol, acting as a payload protocol. issue is LCD screen gui wont work if i terminate QT demo during autorun. rviz is working fine but I would like to use it in headless mode. graphic drivers have moved from. For example, you connect a Linux computer with a running X-Server to the network, then on that computer execute the command "sudo xhost +". Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. On headless machines, or every time the local X server cannot be found, NoMachine will use its own display service (that is an embedded X server) to let users connect seamlessly a physical desktop running in background on the remote machine. An X server is a program in the X Window System that runs on local machines (i. x) running Powercli 5. This setup is fairly snappy when I view RViz. Couldn't start X server on card 0 Couldn't start X server with old config, trying with a fresh configuration Couldn't start X server on card 0 Error, failed to start X server. 197 and the client is at 10. I can't do anything when i startx, I can't exit, I have to manually reset via reset button on the computer case. You are able to inform through the Web address, which should start with "https". When an X client is run it looks for an X server port to connect to and start issuing commands to display information. KISS = "It can scarcely be denied that the supreme goal of all theory is to make the irreducible basic elements as simple and as few as possible without having to surrender the adequate representation of a single datum of experience. launch,然后在pc打开rviz 输入. I need some help diagnosing this. We collect information on our subscribers that may be used in summary reports presented to our advertisers. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Hi, I have an issue to connect to a previously working setup: in the client window, after authentication I can. Current implementation cannot read obstacles from YAML files. com and wanted to blow my brains out when I saw the complex and potentially dangerous solutions, probably all written by 20 something techno geniuses. Starting the Mac OS X 10. Paolo rossi logic and the art of memory pdf primer. The X Window System is usually started as an X session which is the combination of an X server and connecting X clients. When i try to run the command avogadro I get the next error message avogadro: cannot connect. I see many, many hints of ``use xhost +hostname'' or even ``xhost +'' to allow X connections. You may be able to bring the X root screen to the front. Hello, I am running ROS (latest cturtle) on my robot using an onboard 1. 5 MS Server 2 (for testing) - VLAN4 (192. The problem is, I can connect to the VPN just fine and access all services running on that same OS X server like iChat and AFP file sharing. Power on the computer. In this article, I'll explain why your iPhone "cannot verify server identity" and show you how to fix this problem for good!. Once connected via Ethernet, login that way using your network account first. You may have to register before you can post: click the register link above to proceed. i'm installed virtualbox on ubuntu server 15. IN our environment as described, anyone that accesses the gallery URL causes the server to create a studio entry and a user entry, which can be viewed from the Gallery Admin pages, but cannot be deleted. 0 as the value of display variable. You can connect to the WINS server provided by the DHCP server used on the NAT network, provided that the WINS server is already set up on the host. 2 in order to get it running in a CLI environment. Duncan, I think the key here is that you say that the SQL Server (SQLEXPRESS) service is stopped and can not be started. OpenSuse: Sudo Error: Cannot Connect to X Server 3 29 Sep, 2011 in Bash / GNU/Linux / HowTos tagged bash / GNU/Linux / howtos / opensuse / sudo / suse / x-server / xdg-su by Tux. You cannot use the VMware Management Interface to create and configure virtual machines. Tagged: Visual gdb cannot connect to X server :0 raspberry pi This topic contains 1 reply, has 2 voices, and was last updated by support 1 year, 1 month ago. But Gazebo crashes with (RViZ also crashes):. Now it should work (at least until the computer goes to sleep again). Update your Acrobat to the latest version, and check whether the problem is resolved. When trying to start sqlplus, I guess you are logged in as user "oracle"? Could you show the output of an "export" shell command run by that user?. It sounds like you can not connect to the server, do you have a firewall running? cant run rviz actually i am very blur. exe,安装完成后并运行,修改终 端的设置,在SSH中如下: 重启SSH,并运行bochs。. We are on a workgroup. Client is Windows XP SP3 running Xming and putty. VNC ( Virtual Network Computing ) Your workstation ( Linux or Windows ) is only displaying a copy of the display ( real or virtual ) that is running on the remote machine. Go | Connect to Server. twist = Twist() twist. Reference 4. But Gazebo crashes with (RViZ also crashes):. I had problems with configuring the driver, but I was able to do a clean install of the latest 185. I cannot connect remotely and I believe it is related to fact I can only connect locally if DISPLAY is set to :0. All is well, apart from one glitch. Due to the positive reception of my previous post on setting up OS X. In you case, the display ":0. smb://servername/sharename (in this case, acfiles is 10. The forums were migrated over to https://central. Qiita is a technical knowledge sharing and collaboration platform for programmers. When i try to satart it with sudo virtualbox it says Qt WARNING: Virtualbox: cannot connect to X server any way to fix this?. # an X server # Make sure processes in the container can connect to the x server. Not only does it encrypt the session, it also provides better authentication facilities, as well as features like secure file transfer, X session forwarding, port forwarding and more so that you can increase the security of other protocols. 3 and Network Manager is giving me a headache by not connecting to WEP based wi-fi network. Preparing a NetBeans base image was not that straightforward since we need to install some additional dependencies (namely the libxext-dev, libxrender-dev and libxtst-dev packages) in order to get it to connect to the X11 socket properly. 0" refers to a local X-Server. Useful for displaying and debugging data. 0 as the value of display variable unable to start a interactive install version session becos of the following error: can't connect to x11 window server using 192. But Gazebo crashes with (RViZ also crashes):. The exact port numbers depend on the VNC display number, because a single machine may run multiple servers. I am running this program on a remote machine with GPU access. How to Use Time Machine Server in macOS High Sierra Nov 6, 2017 Some Mac users have long run Mac OS X Server on a computer in their household to use as a file sharing repository, and to centralized backups of other Macs. Hi Michele, What steps did you took to change the time? If from your computer you connect to the XenServer using https on your browser (https://XENSERVERADDRESS/), can you see the ISO download page or does the connection fail (this is a good test, because it will use the same certificate as the XenCenter connection)?. X Window System Server for Windows. Re: [SOLVED] sudo gui apps cannot connect to xserver from terminal app Thanks, Vamp898 and PirateJonno, I missed that message about the new sudoers file. But Gazebo crashes with (RViZ also crashes):. I am interacting with the system via SSH with PuTTY. I have SQL 2008 server installed on the local machine with the instance name "SQL2008". Info: Connection from 192. To have mongodb_exporter I was doing:. There's an update or a new app right there — but it's just out of reach. You may have to register before you can post: click the register link above to proceed. OK, I Understand. In practice, that is 256 unique colors on the screen at a time -- not enough for a fancy background or an application such as Netscape. Hi JD, I’ve checked your log file and found this: “Failed to import pyassimp” This is the reason why TF is not working, and thus no joint state or robot pose is being published –> and you have this bug on Rviz. 0 I checked the X11 forward setting of sshd server and client and both are correct. Solution 2:- Some time this issue happened on your iPhone or iPad after you changed your mail password in desktop. Most of us have to connect to a server every day to access files and to share them with others. Example Code. Sorting out the iOS Sometimes, it is not actually a problem with your email, it is a problem with the operating system, that is iOS, which leads to that dreaded message "Cannot get mail - the connection to the server failed". I've followed the instructions on the Github page perfectly when trying to setup the raspberrypi_video files. -height N Height of recorded window. How I can copy it from virtualbox? Unable to connect to X server: Connection refused. But then I get a "cannot connect to X server" message immediately after.