Networking :: Cannot Ssh Into Server From Work
Jun 1, 2010
There is a server at my house that I store a lot of info on and do most of my work on. Normally, when I get online somewhere I ssh into my server and get to work, but all of the sudden, I can't do it from my work place. I have tried changing the port numbers around, but that didn't help. I also can't ping anything when I'm on my work network anymore, I just get a message saying packet filtered. If I connect to a local coffee shop internet, it works just fine and I have full access.
So my question is this, can I do anything about this? If worst comes to worse, I can tether my internet access though my phone, but it is a lot slower than my works internet connection and it really kills my battery.
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Feb 21, 2011
I need to connect with a server apart from the server which I work on. What is the command for this?
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Nov 3, 2009
I have been a loving fan of your software for years now and have been trying to move into a new dedicated server, getting away from my VPS I have been anchored to. I had to change static ip's on my main internet line and thus got locked out of my server. I have the box here and I can console into it but I cannot get the new ip address to work. I have tried so many things it would waste more time than asking for the correct answer.
I know you are wise in the ways of the server as you have gotten me out of a jam in the past. I am currently running Centos 5.4 and a trial version of WHM/cPanel (which needs to be re-registered to the new address if I can ever get back online.)
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Jan 7, 2010
I've never had this much trouble, but maybe it's because I have not setup a dhcp3-server in some time.
My server has three NIC cards. The Internet connection is on eth2, and I'm trying to get connect other computers to the server through eth0.
It's suppose to be relatively easy, unless I'm assigning specifics, right?
Code:
#
# Sample configuration file for ISC dhcpd for Debian
#
# Attention: If /etc/ltsp/dhcpd.conf exists, that will be used as
[Code]....
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Aug 20, 2009
Loving my new Fedora system and the steady march towards making a MS free house but I have a problem. I need to be able to connect to my company server via VPN and then initiate a terminal server connection. Two clicks on XP but I have no idea what to use now. As soon as I have this down I can remove my XP partition forever as I have everything else I need daily working like a charm.
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Feb 2, 2010
I have an ubuntu 8.04 dedicated server running openssh which I am having problems with.
The server is based in England yet I am currently working from Thailand. Slow speeds and timeouts I am used to but it is now over 24hr since I have managed to SSH the server (from here).
I just tried remote desktop on my PC back in the UK and this connected straight away through both SSH and SCP.
Thinking that it may be the IP being blocked from my works network I switched off wifi on my phone and tried to connect over the data network a few times with no luck.
Another strange problem is that when we got the server it was locked into a chroot jail which SSH(22) always leads into. After accessing SSH on port 22 I have to run a break script to gain root access. The sshd_config file says that the server is listening on port 57 yet I have never been able to access this.
Code:
> netstat -a | grep ssh
tcp6 0 0 [::]:ssh [::]:* LISTEN
> iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
[Code].....
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Mar 24, 2010
I'm setting up a loopback server for work related testing. I have a small program that needs to be executed through telnet from about 200 IP's on the same network. On the server, I have to set a static ip, enable telnet login, and place my 2 program files in the appropriate folders so it will run. I have been on this for 2-3 days and haven't got far.
My /etc/Network/interfaces file is this...
Auto lo
iface lo inet loopback
The rest of terminal is filled up with these, and it states that the file only has 32 characters. I don't know if this is a privilege issue or not. I've read several threads on telnet, and lots of arguments about ssh, but I can't run ssh, so I need to enable telnet. There is not a security issue. I run a private network where the only valuable resource would probably be the text file with my IP address on it. Its also accessed by people that have very limited networking knowledge and no linux knowledge...
So,
Set static IP
Setup telnet server...
Any takers?
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Mar 25, 2010
at the moment I run the code;
Code:
sudo ifconfig [interface] down
sudo dhclient -r [interface]
sudo ifconfig [interface] up
sudo iwconfig [interface] essid ESSID_IN_QUOTES
sudo iwconfig [interface] mode Managed
sudo dhclient [interface]
and this gets my network going fine Could someone let me know how to set up /etc/network/interfaces to get it running on startup
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Dec 15, 2010
On my server I've a OpenVPN gateway and a DNS bind9 serveur At the moment, OpenVPN send opendns address to the clients and it works fine. I would like to use my DNS server for my clients to work with any DNS address. Here is OpenVPN config :
[Code].....
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May 13, 2010
I'm trying to make a DHCP server work on my CentOS 5.4 box, but I have placed it on another subnet than the one that it is going to serve. I use a helper address on my router to make the the DHCP requests being routed to the DHCP server on the other subnet.
dhcpd.conf file:
ddns-update-style interim
ignore client-updates
ubnet 10.160.195.160 netmask 255.255.255.224
[code]...
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Feb 21, 2010
How to connect my newly installed ubuntu on my desktop at work to the company's server that is windows based. I have my user name and password given to me by my it office but they could not help me set up linux.
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Apr 3, 2010
I've searched through google, and all I can find are instructions on how to set up a L2TP/IPSec VPN that works with macs and iPhones. I'm NOT trying to set up an L2TP/IPSec VPN. I'm trying to set up a pure-ipsec vpn.
The iPhone IPSec client is a built-in cisco client, I believe. I'm staying away from L2TP and PPTP because I need multicast packets to go through. *edit: wow, i just noticed that the title says "8.10 LTS". Oops! I obviously mean "8.04 LTS". Gah, the lack of sleep got to me.
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Jul 24, 2010
Trying to share files between Ubuntu 10.04 machines has become a continuing nightmare; it has been going on ever since the launch of 10.04.
I have worked my way through every post and howto I can find in this forum, but without success.
I have 3 machines in my home network; 2 are on wired connections and one on wireless. Each machine dual boots Ubuntu 10.04 and Win XP.
When all machines are in XP, everything is fine. When all machines are in Ubuntu, the reverse is the case. On some I can see the other machines; on others I can only see "Windows network". In all cases, clicking on any of the icons that emerge from Places>Network, I get the "failed to mount....failed to retrieve share list from server."
Along the way, I have changed /etc/samba/smb.conf so often that I have now done a clean reinstall of Ubuntu on each machine and a clean installation of Samba. The problem remains.
I have a few specific questions, the answers to which might just lead me in new directions
1. In the smb.conf file, should the "Netbios name" entry be the name of the machine itself or the name of the Ubuntu machine that you wish to be the server.?
2. Should there be a different entry for WINS support yes/no for server and clients?
3. Many of the howtos take you to /etc/init.d/samba to start and stop samba; but that folder is not present on any of my installations. Is that OK? Do those instructions only apply to earlier versions?
4 I am totally at a loss over the WINS server entry, and what w,x,y,z are meant to be replaced with
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Dec 14, 2010
a machine with 2+ network cards, need to setup TFTP server on one card and use internet on another.
the tftpd server works on default routing network adaptor with following configuration.
How set the TFTP server on the secondary network adaptor?
TFTP server tftpd by xinetd configuration in: /etc/xinetd.d/tftp
{
protocol = udp
port = 69
socket_type = dgram
[Code]....
Could not find how to change the post <prefix> I remembered clearly I did before.
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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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Feb 16, 2011
I'm having mysterious wired network problem with my Karmic/9.10 machine. It hasn't been in network a while, but now I finally got the cabling done. I can't get the IP from dhcp server (TW-EA510), and static settings doesn't work either. Fresh cabling showed OK 1Gb connection on tester, and win7 laptop works fine. I even tried with long cable though the rooms, but it doesn't help, so it definately isn't the new cabling.
Log from the router after issuing #"dhclient":
Feb 16 23:01:43 DHCP SERVER: DHCPDISCOVER from 00:01:29:fb:c5:d1 via br0
Feb 16 23:01:43 DHCP SERVER: DHCP offer to 00:01:29:fb:c5:d1
Feb 16 23:01:49 DHCP SERVER: DHCP request from 00:1b:ea:c8:a0:ba
Feb 16 23:01:49 DHCP SERVER: DHCP ack to 00:1b:ea:c8:a0:ba
Feb 16 23:01:54 DHCP SERVER: DHCPDISCOVER from 00:01:29:fb:c5:d1 via br0
Feb 16 23:01:54 DHCP SERVER: DHCP offer to 00:01:29:fb:c5:d1
Feb 16 23:02:03 DHCP SERVER: DHCPDISCOVER from 00:01:29:fb:c5:d1 via br0
[Code]....
Motherboard is some old Lanparty with two ethernet ports, NVidia CK804 and Marvell 88E800 rev 13 Gigabit netwok adapters, neither of them works. At least another of them has been worked earlier when I last got it wired. It's been a while, so I'm not sure which one of them and with different router if that matters.
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Apr 23, 2009
I have this annoying problem since day one.I am testing out Red Hat RHEL5, everything is fine except DNS look up.If I ping www.google.com, it doesn't work, ping ip address it all works;if I bring up browser, put www.google.com it doesn't work, can't find the name, however, simply put ip address there it works.My DNS seeting seems ok, and the DNS works from Windows box.
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Jan 12, 2011
I am trying to set up an unused machine as a web server for my students.
I originaly tried with Redhat 9 and had the same problems. I am using an HP Pentium 4 system with 2 network cards.
1) The built in Realtek RTL8139 configured as eth0.
2) An add in Broadcom BCM5782 Gigabit card that was added I presume when the built in card failed (we have a number of machines like this around the school), configured as eth1.
I did not realize the second card was installed when I had Red hat 9 on the system, but I discovered it after installing centos 5.5. I have tried to configure the system to use DHCP with and without getting the DNS from the provider, and both ways the system complains that there is no connection, check the cable, so it will not activate the device.
When I configure the device to use a fixed IP, I can configure the device, but I can't ping anything on the network other than myself. I suppose it is possible that both network cards have failed, but I get green link lights with both cards, when I connect them to my router, so I am at a loss as to why neither board seems to work. I don't have a spare network card to slide in because the computer takes a special mini card. Is there an easy way to test the board to see if the board is a problem?
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May 22, 2011
Does anyone have some material about statistics using ubuntu / linux server, or a text which generally describes the ubuntu server?I need urgent, i'm writing specialization work about administration apache and ftp server on ubuntu 10:10 server, so I need something for the conclusion.
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Aug 29, 2010
I need to setup a Linux VPN server at work for resources' sharing, I currently have a server running CentOS 5.4, and tried endless tutorials on the web, but to no avail, and can't find where the logs are kept for the VPN server to check where the error is. But all my attempts to try to connect keep failing.
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Apr 11, 2010
I am trying to do a https access with virtual hosting with apache.
But when I install mod_ssl rpm httpd server does not start again
I am stumped
httpd -t shows syntax is OK
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Nov 4, 2010
\Actually i lost the login details of my server so im recovering it in rescue mode.what i want to ask here is if i restarted my server what i need to do in order to work as it was before.on my server samba and dhcp server is configured.will my client users can access there network if login page comes or i need to do something else such as restarting services or not.
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May 21, 2011
Server Apache doesn't work.Note the LOG line,you cannot modify or delete "logs/"
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Apr 21, 2011
how can i teste that my slave dns work better;knowing that my primary dns is in an other machine .i tried to dig the slave ;i have the response but when i halt my primary dns ,i couldn't dig the slave dns.
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Aug 24, 2010
I just started having a problem with my 10.04 laptop a few days ago, maybe Thursday, last week. When the computer is plugged into my home network (standard 192.168.1.1 sort of IPs) it works fine, but when I try to connect to my work network (130.15.90.XX) I am unable to pick up an IP. The router in my office is working fine, all the windows boxes can connect.
I've also noticed that when the computer is plugged in at work the notification icon for the networking indicates it is looking for a wireless connection (rather than the normal up/down arrows), even if wireless is deactivated
I can set a static IP in /etc/network/interfaces and everything works, so it seems to be a DHCP problem?
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Jun 20, 2009
I've been experiencing a problem with Fedora in which when I enable Wireless in Fedora, Wireless networking does not work in windows. HOwever, when disabled, it works correctly. Windows claims it is "not able to find any networks to connect to"
EDIT: It seems that when wireless is disabled manually on fedora before shutdown, there are no problems in windows.
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Aug 25, 2009
Networking on Fedora 11 doesn't work for me on various machines. Fedora 10 does, but only if you don't do an update.Why does Fedora get worse the more you keep it up-to-date?
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Aug 21, 2010
I've two internet based server ( xx.xx.xx.xx and yy.yy.yy.yy ) The Y server is running VNC server and is responsible for answering to VNC sessions. But I need to hide the IP of Y server so I want X server to be as VNC Proxy and redirect all VNC sessions to Y server.
I guess the best way is to use iptables but actually I can't get it working so
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Jul 7, 2010
My friend has a Linux base receiver and he using that receiver as a server he was asking me if he can remotely access that receiver from another computer and do the work he needs to do and be able to restart the receiver remotely. If you can do it how is it done using win xp.
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Jun 6, 2010
On my previous install of Ubuntu Lucid (desktop), installing a server was as easy as 'sudo apt-get install apache 2' and then putting my files in my /var/www directory. Doing this, I could access the server from any computer by going to my IP address. Since the last time I formatted my entire computer, I can't see to get such a server up anymore. I can only access it on my computer using my local IP.
I have ubuntu installed, but I also installed kubuntu-desktop and xubuntu-desktop in that order. All of which I can choose at login.
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