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• Components needed for VPN

  - by Anriëtte Combrink

  Hi there We eventually got our Mac Mini Server. We now want to set up a small Remote Access VPN using this Mac Mini Server. Firstly we are not sure of the components needed additionally to the server to setup this VPN. We currently have the following: 1 Mac Mini Server 1 Firewall Router (Billion 802.11g ADSL2+ router with VPN capabilities [it says so on the box]) 4Mbps ADSL connection (which should have VPN capability enabled by the service provider, or so we heard) We are not sure what else needs to be included to enable our small VPN. Any advice would be really helpful.

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• FTP timeout only the first time

  - by user1474681

  I'm using PureFTPd on MacOSX (Snow Leopard, not server version). When trying to access the FTP account from the outside via dyndns (e.g. using https://www.wormly.com/test_ftp_server) the connection always times out the FIRST time. When I try AGAIN in the next few seconds it works. What is this about? I have forwarded the ports to my apple router and tried disabling the OSX firewall as well. Thanks for any advice. Dennis

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• Port forwarding no longer works

  - by Auryn

  Prior to testing an OpenVPN installation, I setup a basic VPN server using the software already built into Windows 7. Port forwarding on the Linksys router worked as normal and I was able to connect remotely. After doing an install of OpenVPN Access Server on a spare box running Ubuntu, and adding new ports to be forwarded I was unable to access the VPN from an external source as the required ports all indicated that they were closed. (During testing XRDP and VNCSERVER were also installed to facilitate access to the box) Checking back on the Windows 7 VPN resulted in no access to that vpn setup either. All ports are now reporting a being closed despite being previously open even ports that were being used for other services. Adding and removing port forwarding rules seem to have no effect. At this point, in order to troubleshoot, both the firewall and anti-virus software have been disabled on the Windows 7 machine. Could this be just a router issue? Is there any way out of this without having to reset and reconfigure the router?

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• Virus disturbing my audio

  - by Mike M

  i had a desktop.ini virus on my computer. I managed to get rid of it (i think) but now my Mcafee firewall will not stay on for more than 3 secs before it turns off again. Also something is freezing my computer for a few secs when a window is open, also my audio goes in and out when watching videos and listening to music. I figured out that it only happens when i connect to the internet. I have to restart my PC and quickly disconnect the internet if i want to listen to music. also i have vista

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• Flexible traffic & bandwidth monitor

  - by BrNathan

  I have looked around, but have not found anything to meet our needs. I need something that can log all connections & bandwidth consumption. We need it for analysis: by protocol, source IP (& MAC if possible), destination, etc. Ideally we are looking for something that can produce custom graphs & also uses mysql. All connections go through one server on a bridged connection (2 network cards) so it is easy to pickup traffic. We are not concerned so much with internal LAN traffic as what passes in & out to the firewall. Thanks for you suggestions. Update: I use Ubuntu 10.04

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• Having XP VM use my host OSX ssh tunnel to connect to a remote site?

  - by Manachi

  I am using Mac OSX and have Windows XP running on VMWare Fusion. I'm creating an ssh tunnel from OSX to a remote server, and then trying to have Windows XP use that tunnel (I actually use a program called Proxifier on XP to filter my XP MS SQL Server traffic through that tunnel) Note that I can successfully create an ssh tunnel (on port 9333) from the XP putty to the remote host, and have SQL Server Proxify through that tunnel and it all works correctly. However when I try to set up the tunnel in OSX, and have Proxifier in XP point to the OSX tunnel instead of localhost, it doesn't seem to connect. Here is the OSX command i'm using to create the tunnel: ssh -i /my/key -p 9001 -D 9333 -g me@remotehostname Then I set my XP proxifier to point to macosxhostname:9333 (instead of the previous localhost:9333 which worked corrently when using putty) Any suggestions on what I may have missed? My XP firewall is turned off while setting this up.

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• pip install fails on guest Linux Mint 15

  - by synergetic

  On my Windows 7 PC, I installed VMware VM for Linux Mint 15. Windows PC is behind corporate firewall /proxy server. Now inside Linux I issued: sudo apt-get install python-virtualenv Then created ~/projects folder and python virtual environment: mkdir projects cd projects virtualenv venv Then activated my virtual env: . venv/bin/activate So far no problem. Then tried to install python libraries, for example markupsafe: pip install markupsafe It throws an error: Cannot fetch index base URL https://pypi.python.org/simple/ Could not find any downloads that satisfy the requirement markupsafe No distributions at all found for markupsafe Storing complete log in /home/me/.pip/pip.log Inside pip.log I found: <urlopen error [Errno 104] Connection reset by peer> Installing any other library throws similar error. What's wrong here?

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• What can I do to prevent my user folder from being tampered with by malicious software?

  - by Tom Wijsman

  Let's assume some things: Back-ups do run every X minutes, yet the things I save should be permanent. There's a firewall and virus scanner in place, yet there happens to be a zero day attack on me. I am using Windows. (Although feel free to append Linux / OS X parts to your answer) Here is the problem Any software can change anything inside my user folder. Tampering with the files could cost me my life, whether it's accessing / modifying or wiping them. So, what I want to ask is: Is there a permission-based way to disallow programs from accessing my files in any way by default? Extending on the previous question, can I ensure certain programs can only access certain folders? Are there other less obtrusive ways than using Comodo? Or can I make Comodo less obtrusive? For example, the solution should be proof against (DO NOT RUN): del /F /S /Q %USERPROFILE%

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• Can /etc/hosts.deny/allow be overridden?

  - by Tar

  I have security measures put in place to keep unwanted users out of my server. I've changed the SSH port, disabled root login, have a software firewall to block portscans, and have entries in hosts.deny and hosts.allow. I have various services denied to all but another server of mine should my IP change, and two other administrators + my own IP address. My question is, can hosts.deny/allow configuration be overridden so that they can gain access to my server? Does using chroot jail for running things like an IRC server and Teamspeak server prevent people from gaining access to my server and screwing with it?

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• Adobe Flash not working anymore with Browsers

  - by Marcus

  Hi guys, I have a really annoying problem: essentially, Adobe Flash is not working anymore. For instance, I cant watch any clip on youtube and I always get a black screen saying: Movie not loaded ... I have the newest Flash version (10.0.45.2), and the problem is the same with IE, Firefox or Chrome. I am using WIN XP and I turned of Antivirus software as well as Firewall, still I cant watch any flash stuff. Anyone an idea what could have happened in the last week? Never had a problem before that! Thanks!

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• Connecting together DIR-615 and DIR-655

  - by ra170

  On my DIR-655 my internal network is: 192.168.0.x On my DIR-615 my internal network is: 192.168.1.x They are both connected to my firewall PIX 501 box The PIX itself is connected to the comcast modem. I briefly looked at the menu options on those router and they look similar, however I'm not sure what's the best way to connect those two together so that I can go between those networks. (printing, file browsing, etc.) I'm not sure if I have to do this somehow on those two router or on the PIX itself, or probably on all of them. If anyone has experience with something like that please let me know..

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• Getting a TTY in a Connectback Shell

  - by Asad R.

  I'm often asked by friends to help with small Linux problems, and more often than not I'm required to login to the remote system. Usually there are a lot of issues with making an account and logging in (sometimes the box is behind a NAT device, sometimes SSHD isn't installed, etc.) so I usually just ask them to make a connect-back shell using netcat (nc -e /bin/bash ). If they don't have netcat I can just ask them to grab a copy of a statically compiled binary which isn't that hard or time consuming to download and run. Though this works well enough for me to enter simple commands, I can't run any apps that require a tty (vi, for example) and can't use any job control functions. I managed to bypass this issue by running in.telnetd with a few arguments within the connect-back shell that would assign me a terminal and drop me to a shell. Unfortunately in.telnetd isn't usually installed by default on most systems. What's the easiest way to get a fully functional connect-back terminal shell without requiring any non-standard packages? (A small C program that does the job would be fine as well, I just can't seem to find much documentation on how a TTY is assigned/allocated. A solution that doesn't require me to plough through the source code for SSHD and TELNETD would be nice :))

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• How to connect through a proxy using Remote Desktop?

  - by scottmarlowe

  So I've got a home server running Windows Server 2003. I use a dual network card setup and Routing and Remote Access to link the internal, private network to the external connection. The external connection hooks directly to my cable modem (so no routers or other devices sitting between). The problem I'm having is that I can't connect remotely from a location outside the house (so connecting to the server's external connection) to the server using either Remote Desktop or VNC. I have enabled both ports in Routing and Remote Access's firewall to allow access, and I have enabled Remote Desktop in Windows Server 2003. The odd thing is that I can access my home server's SVN repository and I can even ping the server's IP. I am using the IP to attempt to connect, though I use a dyndns.com provided name to connect to my SVN repository, so it shouldn't make a difference (I know the IP is getting resolved correctly). Any ideas on where to start diagnosing this one? I haven't seen anything in my server's event log. If any other info is needed, let me know. Thanks. UPDATE: One last piece of information: We use a proxy server at work, which I'm nearly 100% sure is the culprit. I have a workaround--if I connect to our VPN (even though I'm already inside the building) I am able to connect to my home server. This is with VNC. However, is there a way to connect through a proxy using Remote Desktop? ONE MORE UPDATE: Indeed, it was the http proxy I'm sitting behind at work that was causing the issue. An acceptable workaround is to use my VPN connection to bypass the proxy, and I'm in!

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• Remote Desktop to Virtual Machine

  - by Valvaris

  Hello: I recently reformatted one of my servers with Windows Server 2008 x64 and with that, installed the latest version of VMWare server on it. Within that, I created a new Windows Server 2003 R2 x86 virtual machine for the purposes of being a backup domain controller. I was able to successfully configure it as a domain controller and have it provide DNS service to my domain. I've been using the VMWare remote console to set this up and figured it was time to get remote desktop working. I set it up as I have with many other computers on my network (hitting the checkbox, making the firewall isn't blocking it) and I cannot get remote desktop to connect to it. I've tried using the computer name and its IP address neither work. I can ping the computer from the outside but the Virtual machine cannot ping anything from inside it. All machines are on the same subnet. I can't seem to figure this out.

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• Losing WLAN connections but maintaining internet connections on WIndows 7 Workgroup

  - by Di

  I have 4 computers all running Windows 7 networked in a Work group through Billion 7404vgp-m wireless router.All drivers and firmware for wireless adapters and router are up to date. Windows Firewall and Defender disabled.Disconnected ipv6. Running Nod 32 anti virus software. All have own static IP address 192.XXX.X.XXX. When I Reset the router all computers have Internet and LAN access for about 1 hour and then they will lose the LAN connection but maintain Internet connection. Resetting wireless adapters or restarting computers does nothing to fix this but resetting router will. What is causing this and how do I fix it. Thanks Di

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• Connect iPad to windows 7 VPN

  - by Linuz

  My iPad keeps spitting out the error: "A connection could not be established to the PPP server." I am trying to connect it to a VPN I set up with Windows 7 as an incoming connection. On the iPad, I went into the VPN settings, added a new PPTP VPN with the following information Server: Windows 7 Computer's IP RSA SecurID: OFF Account: Account Username Password: Account Password Encryption Level: Auto Send All Traffic: ON Proxy: Off Now I know that it is making some connection to the Windows 7 Computer because whenever I intentionally put in the wrong VPN password on the iPad, it makes me put in the correct one before trying to connect again. All the ports are forwarded on my router for PPTP, and my Windows 7 Firewall is even off to try to get this to work. Any help would be greatly appreciated, thanks.

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• Displaying ads over WiFi hotspot

  - by Ahsan

  I have recently distributed my WiFi network with highpseed antennas to my area which covers almost 300-400 peoples. I am not charging them anything but i would like to generate some revenue through Advertisements placed on the websites that they visit. Is it possible to display ads from Google (I know i can do redirect the Advertisements, using some cache server or firewall) . Its just like a free vpn but i would like to have my advertisements above the websites they visit so i can take out the cost for the WiFi that i offer. Any suggestions would be great!

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• Windows Server 2008 - unable to bind any TCP port

  - by Kalphiter

  OS: Win Server 2008 RC2 Windows firewall on (no effect when off) I have suddenly been plagued by an issue in which I cannot find any similar ones with a search. I am running about 20 game servers that bind to a UDP port, then bind to a TCP port 1 above the UDP port. Suddenly, a day ago, new TCP binds stopped functioning. Now, I have confirmed that other applications cannot listen on most ports. For example, I have a java program that I made a copy of, and tried the following ports: 33001, 23789, 89... completely random ports. As far as the applications already that have TCP bindings, such as HTTP and MySQL, only port 8080 was one port I discovered could work, and only for Apache. If applications would leave their default port they could not bind, however they returned to normal when the port was default. I've checked for listening applications through netstat and curports, also checked for any connections on these ports, and they're completely free.

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• monitor network bandwidth via ssh

  - by ServerSideX

  I'm running a Centos 6.4 server with cPanel. WHM (admin side panel) shows about 100GB of bandwidth this month. However, the server's RTG shows 3.4TB last 30 days, 121GB past 24 hours alone. Doesn't make sense. I'm trying to trace the cause of this. It's a shared web hosting server for approximately 300 domains. I would appreciate help tracing this down somehow. I utilize CSF firewall and Configserver exploit scanner as well. Day http://s10.postimg.org/ti1qhj5mx/day.png Week http://s7.postimg.org/8ho8kds57/week.png

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• Hyper-V 2012 and VM web server http

  - by Syrus

  I have a a few windows 2008 R2 Datacenter machines and a few windows 2012 Datacenter machines. I was runnin RedHat 6.2 VM on 2008 and all my other servers could access it over http until I put a VM up on 2012. No mater what I have done, (turned off selinux, firewall, iptables), on both RedHat servers has allowed them to pass http traffic. They can ping each other and ssh to each other but not http. I tried turning off the windows firewalls to, but no joy. I then moved the RedHat VM to the 2012 server and now the two RedHat VM's can http to each other, but none of the other vm's on other 2012 and 2008 servers can communicate over http. Anyone have some insight?

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• display internet usage agreement before users can use internet

  - by Force Flow

  I was looking for a way to display a usage agreement page in browsers that users must agree to before they are allowed to access the internet. This would be for users on public computers and public/open wifi. I'm using a sonicwall firewall which does support this feature, however, there is a rediculously low character limit which makes it impractical to use. I thought about setting the browser's homepage to a usage agreement page, but that can easily be bypassed by navigating to somewhere else. Are there any other approaches that may be worth considering? There is currently no server in place on the public network, though I can set one up if need be.

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• Development Server Blocked Only from Home

  - by theonlylos

  Recently I've been having an issue with my CentOS 6 test server running Apache and Webmin running on port 10000 where when I try accessing any part of the server - SSH/FTP and even my domains (I have two - both keep getting timeout errors) when I try accessing from any computer on my home network. However when I access via tethering or via my office networks everything loads fine. While the firewall is the first issue at mind, my router never was set to block any special ports, and even after adding port 10000 as a specific exception I'm having no luck. Also, I doubt this is an IP blacklisting issue because I have websites on other servers using CloudFlare for security and I haven't gotten any warnings. Any assistance is greatly apprecaiated. UPDATE: Just some extra details about the issue: My ISP to my knowledge only blocks off ports 25 and 80 for residential users to prevent them from running web servers - however this issue has only come up a day or two ago, before that I was using the server successfully for months. Also the server is not physically located in any of my workspaces - it's a VPS housed in a datacenter

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• workstation 7 and host-only no connectivity

  - by Steff

  hello, I have a WinXP 32 host (IBM T400) with VWware workstation 7 (7.0.1 build-227600) and some guest OS (Win xp, NT, etc.) I can ping from the host to guest OS and vice versa, but... every other "protocols" do not work at all. No http from host to guest, no CIFS, nothing, nothing, nothing. Windows firewall is turned off, TCP/IP filer is turned off. i re-installed VMware workstation, then the networking started working again, but, after some reboots... it stopped again. Connectivity among guest OS... it works FINE. Can not understand... problems exist just between host and guest. Host-only or NAT... it is the same. Any suggestion?

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• workstation 7 and host-only no connectivity

  - by Steff

  hello, I have a WinXP 32 host (IBM T400) with VWware workstation 7 (7.0.1 build-227600) and some guest OS (Win xp, NT, etc.) I can ping from the host to guest OS and vice versa, but... every other "protocols" do not work at all. No http from host to guest, no CIFS, nothing, nothing, nothing. Windows firewall is turned off, TCP/IP filer is turned off. i re-installed VMware workstation, then the networking started working again, but, after some reboots... it stopped again. Connectivity among guest OS... it works FINE. Can not understand... problems exist just between host and guest. Host-only or NAT... it is the same. Any suggestion?

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• Components needed for a VPN

  - by Anriëtte Combrink

  Hi there, first of all, I asked this question on SuperUser.com, but no one there could help me. Well, we eventually got our Mac Mini Server. We now want to set up a small Remote Access VPN using this Mac Mini Server. Firstly we are not sure of the components needed additionally to the server to setup this VPN. We currently have the following: 1 Mac Mini Server 1 Firewall Router (Billion 802.11g ADSL2+ router with VPN capabilities [it says so on the box]), we currently use this as our internet connection and resides X.X.0.1 on our network. 4Mbps ADSL connection (Should this line have VPN capability enabled by the service provider?) We are not sure what else needs to be included to enable our small VPN. Any advice would be really helpful?

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