Networking :: SSH Connection Blocked By Symantech Gateway

Oct 13, 2010

In my work I am trying to connect my home server behind symantech gateway but I cannot but when I try to connect with telnet to ssh port I can make connection.How can I connect my server via ssh client.

View 11 Replies


ADVERTISEMENT

Networking :: Connection Lost To Gateway?

Oct 8, 2010

recently i have combined 2 machines into 1. after doing this, the ping to the new machine stops, for no apparent reason, and consequently all traffic to/from the machine also stops. when using the two machines individually this never happened.Lastly, if i restart the network, it kills everything (like the network just wont restart - it reaches the last interface and hangs), and if i reboot the machine, it seems to be fine for about 3-4hours.has anyone seen anything like this when connecting a large number of hosts to 1 gateway, using linux as the router?

View 2 Replies View Related

Networking :: Ubuntu Gateway Box Loses Connection

Oct 28, 2010

i have an ubuntu server box as my gateway and firewall. for days at a time itll run fine, then one or two days out of the week, it will drop connection often because it drops its ip addr. when renew an ip, itll work fine for about 5 minutes and drop again.ive tried different nics, different wire, my logs dont mention anything, my cron files dont have anything suspicious.

View 8 Replies View Related

Networking :: Vpn Connection / Non Secure Gateway / LAN Not Trustworthy

May 10, 2011

I've installed (Slackware 12.2) Cisco AnyConnect Secure Mobility Client for vpn connection (it is OpenSSL based app). When I'm trying to connect using this agent I get the error

Code: AnyConnect cannot confirm it is connected to your secure gateway.The local network may not be trustworthy.Please try another network.I don't know much about vpn. Any help are very welcomed.

View 1 Replies View Related

Ubuntu :: Traffic Blocked On VPN Connection?

Jan 2, 2011

I'm trying to connect to the www.freeopenvpn.com vpn service from my ubuntu 10.04 netbook edition. Installed the parts based on the instruction of the website, then the connection successful (lock icon on the connection area) but.....

the traffic does not go through, ping rejects with some "buffer error", network monitor does not show any data flow on the lan card. after the connection. Was trying it from commandline, and from gui as well. Same result. Can't even navigate to the service start page.

I do not have firewall, using the linksys built in firewall in my router. The same (dual boot) machine and router let the same vpn work under win XP, so the hardware is fine.

I suspect that it is a routing problem. (using dhcp from the modem-router)

Found that the vpn module installed the virtual tun0 interface and set up the routing table automatically.

Code:
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
173.192.86.142 192.168.1.1 255.255.255.255 UGH 0 0 0 eth0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0

[Code]....

View 1 Replies View Related

Ubuntu :: Internet Connection Is Sometimes Blocked Or Very Slow

Dec 12, 2010

I am using Ubuntu 10,04 with a gnome interface on an ASUS K70IJ. It all works well, just the internet connection is sometimes blocked or very slow. I have tried it on several places (offices, hot spot, friends) with wireless lan and ethernet. I thought it might be a problem with the pilot for the internet connection. Can anybody tell me where I could find such a pilot and how I do to install it?

View 1 Replies View Related

CentOS 5 Server :: Port Configuration - Being Blocked - Iptables And Connection

Jul 4, 2009

I have a fresh installation of CentOS 5 I'm using for a server, and I'm having issues with port configuration. I have iptables running, and it started with no /etc/sysconfig/iptables file. I added a few basic rules (port 53, port 10000 for webmin), saved the file, and restarted the service. I tried connecting to webmin, scanned ports, and traffic was blocked. I set iptables to allow all traffic and restarted the service, and it still showed basically every port as being blocked. It seems port 80 and port 22 work for some reason, even when I tell iptables to block all ports.

I'm not sure what's going on here. Iptables is reading the /etc/sysconfig/iptables file, and if I use lynx localhost:someport it responds as it should according to the file. However, if I try connecting by IP, it's like there's some other firewall or something running that does whatever it's configured to do.....

View 2 Replies View Related

Ubuntu :: Default Gateway For Internet Connection

Jul 11, 2009

I have installed eeebuntu NBR on my laptop and it looks great on a 17 inch widescreen. It looks so different from the usual interface that I get people ask about it and I can evangalise without being considered a boring weirdo! Anyway, I have one problem. Every time I boot I have to run the following command.
Code: sudo /sbin/route add default gateway 192.168.0.1
How do I get this to happen automatically (as it normally does)?

View 3 Replies View Related

OpenSUSE Network :: Dropping Connection - Ignoring Default Gateway

Nov 1, 2010

I recently upgraded a 11.0 installation running on Xen Server to 11.3. I am experiencing frequent network disconnections now. The ip address and default gateway is assigned statically. However, the system seems to ignore the default gateway after a while. Then after several minutes it seems like it comes back.

Code:
root@poe5e:~/ > route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.111.0 * 255.255.255.0 U 0 0 0 eth1
172.16.107.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 0 0 0 eth0
loopback * 255.0.0.0 U 0 0 0 lo
default 172.16.107.254 0.0.0.0 UG 0 0 0 eth0
root@poe5e:~/ > ping 172.16.107.254
PING 172.16.107.254 (172.16.107.254) 56(84) bytes of data.
64 bytes from 172.16.107.254: icmp_seq=1 ttl=255 time=0.515 ms
64 bytes from 172.16.107.254: icmp_seq=2 ttl=255 time=0.484 ms
64 bytes from 172.16.107.254: icmp_seq=3 ttl=255 time=0.496 ms
64 bytes from 172.16.107.254: icmp_seq=4 ttl=255 time=0.473 ms
^C
--- 172.16.107.254 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2997ms
rtt min/avg/max/mdev = 0.473/0.492/0.515/0.015 ms
root@poe5e:~/ > traceroute orl3akm1n
traceroute to orl3akm1n (10.111.19.19), 30 hops max, 40 byte packets using UDP
1 172.16.107.250 (172.16.107.250) 0.405 ms 0.398 ms 0.357 ms
2 * * *

When my sessions suddenly die and I have to coax it into routing correctly again.

View 1 Replies View Related

Server :: Connection Blocked To Kubuntu Server Outside Network

Jul 14, 2010

I've recently turned an older PC into a linux box for the purpose of creating an online server with ftp and ssh capability and file sharing. I've installed Kubuntu 9.10 and I'm trying to ssh to the computer from outside the network.I've install the openssh-client and openssh-server and I've created a static ip address, which works fine. I cannot ssh to the machine from outside the isp using either the direct ip address or hostname. The machine is connected to the internet via a Linksys Wireless G router, and I've edited the configuration settings to keep port 22 open for connect in the port server utility.

I've checked the ssh_config and sshd_config settings and port 22 is the default connection port, which is supposed to be open. I've run ifconfig and everything looks fine. I can connect to the computer using a machine connected to the same router, but other computers cannot access it. I want it to be visible to everyone.

View 6 Replies View Related

Ubuntu Networking :: Somehow Port 80 Is Being Blocked?

Apr 27, 2010

So I set up an Ubuntu 10.04 server with apache2 installed, but for some reason I can't get to it from my browser. the iptables have all changed directories in 10.04 so I can't find the iptables. Apparmor wasn't the problem. The network hard ware is not the problem.There is something inside of 10.04 that is blocking port 80. I can ping it all day using the ip address but when I ping it useing http://ipaddress it can't find the host

View 4 Replies View Related

Ubuntu Networking :: All Ports Appear To Be Blocked?

Jun 12, 2010

I dont know how, but somehow all the ports on my comp appear to be blocked except for 24, for ssh and 5900 unknown. I can connect to the network, but as far as I can tell, I'm powerless to do anything. No webpages load, I'm typing this on my phone.

View 1 Replies View Related

Networking :: Internet Blocked In Ubuntu 9.04?

Jul 15, 2010

In my Ubuntu 9.04 installation, just a few days ago, I lost my usage of the internet. I still had internet access. Firstly though, there was a problem with the router, so I tried a friend's router (both Netgear DG834) and the friend's one worked. But in Ubuntu, I could not access any web pages or email. Skype works.

I tried using my netbook and that could access web pages okay. So then I booted my main PC into the old installation that I kept there of Ubuntu 8.04, which I am using now. And in this the internet works just fine, I can access websites and download and send email.

But in Ubuntu 9.04, it seems like something is blocking my access. I do not recall installing anything new, although something may have been updated recently. I can see the DNS servers from Ubuntu 9.04 and it gets an IP address from the router. What is the likely cause of the Internet being blocked for websites and email (but not Skype)?

View 2 Replies View Related

CentOS 5 Networking :: All Ports Blocked Except 22 And 80

Mar 2, 2011

All ports are blocked only 22 and 80 are open. I scan localhost and ports are open. When I scan IP address ports are blocked.I have no firewall rules.

View 5 Replies View Related

Fedora Networking :: UPnP Blocked By 12 Firewall?

Nov 28, 2009

The firewall in Fedora 12 seems to block UPnP by default, but opening port 1900 for UDP, as I have seen suggestedes not resolve the problem.have the following three scenarios:Firewall Enabled: Transmission cannot open a port by UPnPFirewall Enabled (1900 UDP allowed): Transmission cannot open a port by UPnPFirewall Disabled: Transmission opens a port via UPnP fineAny ideas? Yes, the port that I'm trying to open is also allowed. Router is a Linksys BEFSR41 v4.3, should you care

View 6 Replies View Related

Fedora Networking :: NetworkManager Blocked By SELinux?

Feb 15, 2011

Fedora 13 64. NetworkManager tries to unlink /etc/hosts and is blocked:

Code:
SELinux is preventing /usr/sbin/NetworkManager from unlink access on the file /etc/hosts.
Additional Information:

[code]....

View 2 Replies View Related

Ubuntu Networking :: XRDP Being Blocked By Firestarter?

Dec 8, 2010

I recently installed the XRDP server on my desktop edition of Ubuntu v10.04 following the simple instructions available here. I did this on two computers. One computer has Firestarter installed while the other does not.

When I use Windows to connect to the Ubuntu box without Firestarter, everything works just fine. However, when I try to connect to the one running Firestarter, I get a pop up showing an error message (see the attached file).

I checked the incoming rules in Firestarter and I don't see a way to add RDP sessions to the list of exceptions. I also tried adding my IP address in the host section but this too didn't help the situation.

View 1 Replies View Related

Networking :: Https Blocked By Squid / Iptables

Nov 29, 2010

I connect to the internet at work through an authenticating proxy, and to avoid having to enter the proxy info into every app I use (e.g. firefox, wget, kde, etc) I have set up squid as a local transparent proxy which authenticates and routes all traffic to the work proxy. It has been working fine, but lately I haven't been able to connect to any https sites. I don't think I have changed the configuration, so perhaps it is the result of an upgrade, or something badly configured on my system from the start. I have tried connecting to https sites without squid and iptables and it works fine. My system is Arch linux, and my squid.conf file is: Code:

acl all src all
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443
acl Safe_ports port 80# http
acl Safe_ports port 21# ftp
acl Safe_ports port 443# https
[Code]....

View 2 Replies View Related

CentOS 5 Networking :: Port 25 Blocked Since Updates?

May 17, 2010

Last night I installed all the updates that were available for CentOS. Today, I discovered that all connections to port 25 (Sendmail) are being blocked except connections coming from localhost.

I tried disabling the firewall to see if anything would change but it is still blocked.

If it is not the firewall doing the blocking, what else might it be?

View 4 Replies View Related

CentOS 5 Networking :: Port Open - Should Be Blocked

Jul 10, 2011

Recently I discovered that we were accidentally running a POP server (port 110), when we only should have been running the encrypted version thereof (port 995). This wouldn't have been a problem if the port was blocked in the first place.Isn't the default iptables setup on CentOS to block unspecified ports? Specifically, this line from /etc/sysconfig/iptables

-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited

Right? Well, this doesn't seem to be working for me. I added some rules to allow additional ports and commented out a couple (crucially port 110), but for some reason, port 110 is open.Here is /etc/sysconfig/iptables and the output of iptables -L below that:

# cat /etc/sysconfig/iptables
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]

[code]....

Why isn't "-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited" doing what I think it should be doing?

View 3 Replies View Related

Ubuntu Networking :: Port 21 Is Blocked? Can't Connect With GFTP

Sep 18, 2010

I can't seem to establish a conncction to my site (that I'm hosting in the same computer as the gFTP client- running Lucid Lynx desktop as a server). My site is 'out there', with a domain etc. and also I work on it with localhost. I wanted to use ftp as Joomla has a 'ftp layer' for files permissions etc. But it keeps saying that I can't connect, or the connection 'was reset by a peer' whatever that means. For 'hostname' I use site.com (site is my site's name) and even tried the whole thing like http://www.site.com (I clicke on 'connect to remote, and enter that in the url). or just put it where 'host' goes (when I'm not using localhost) For user name and pass, I just enter what I usually put to access the administrator's back panel in joomla, but maybe I am supposed to use what I use to log on to ubuntu when I start my computer? note sure. Anyway I used a telnet command in the terminal and found that port 21 was blocked. MY isp says they don't block any ports so I don't know. I was able to do this last year so I don't know what is so hard about this lol In the router, I have 'ftp 21 to 21 and ip address 192.168.1.100 (ip is the same for http which is working as I have my site up) now it seems to be open as I used a command at the terminal (found from google). It's open but my ftp still can't connect to my server either localhost or to my site. there is no firewall blocking it and I think my router is set right.

View 1 Replies View Related

Ubuntu Networking :: Linux Blocked On University Network

Feb 13, 2011

I am facing an annoying problem with the wireless network of my university.The network is open, doesnt have wpa/wep, and once connected when requesting any page in the browser it gets redirected to a login page. Basically any pc running windows works fine, however if the os is linux-based than the pc connects just fine, it gets an ip, but the login page never loads. I have tried several browsers, several machines, even my android smartphone is locked out as well as all my friends running ubuntu, arch linux and others linux distros.The technical support never answered my email, and it's now 3 weeks that we are all without internet.

View 9 Replies View Related

Ubuntu Networking :: Http Proxies Has Blocked / How To Works Around

Jul 2, 2011

Recently My ISP provider blocked any kind of http proxies can be used in browsers. When I put my proxy settings in my browser, it keeps loading with no response. I've squid proxy running on my own server and worked fine before that modification.

View 3 Replies View Related

Networking :: Https://hostname:8834/ Is Blocked By Iptables?

Jul 22, 2010

https://hostname:8834/ is blocked by iptables ?

I have nessus application is running in the target machine and the url

is https://hostname:8834/ - which is not accessible

But when i login in the target machine via ssh and check that this application and the service is running fine So i think it is blocked by the iptables in the same machine, where the nessus is running

find the iptables status when iptables -L

iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere tcp dpt:nessus1
ACCEPT tcp -- anywhere anywhere tcp dpt:nessus1

[Code].....

View 3 Replies View Related

Ubuntu Networking :: Access Blocked Sites By VPN And Unblocked By Direct ADSL?

Nov 21, 2010

I am in China, where some web sites(....., facebook, etc) are blocked. So I have to access these blocked site by VPN. But how can I access blocked sites by VPN and unblocked sites by my direct ADSL?

View 2 Replies View Related

Ubuntu Networking :: Cannot Access Certain Ports Via Web Browser, Outgoing Port Blocked

Aug 12, 2011

I have a vps server running certain services which can be accessed via a web browser (e.g webmin control panel), but I have recently been unable to access these services from my home machine using Firefox 5.0, running ubuntu 11.04.

Example:

I can access the server on port 80 fine, eg: [URL]

However I cannot access my webmin control panel on: [URL]

The pages takes ages to load and then times out. Same with transmission-daemon on: [URL]

Everything is set up fine on my server, the ports are open in firewall etc. and I can access these pages fine from my work computer.

This has only started happening in the last day or two and had been working fine up till then. I have not messed around at all with the firewall on my home machine. I have tried other browsers besides Firefox with same result.

View 4 Replies View Related

Server :: Getting Webserver Blocked By Mysql Server Because Of "to Many Connection Errors"?

Jan 17, 2011

I sometimes get my webserver blocked by my mysql server because of "to many connection errors" and have to use flush hosts to solve it, i now wonder if there is any way to increese that connection error value so the webserver wont get blocked ?

View 1 Replies View Related

Ubuntu Networking :: Realtek RTL8187 Wireless Usb Not Working On Lucid 10.04 ( Hard Blocked )?

May 11, 2010

The device it's properly recognized and iwlist scan even list the networks, but the "activate wifi network" on the network manager on right-top of the screen it's grey and therefore cannot be activated. This seems to be the problem ( rfkill list ouput ):Quote:

1: phy1: Wireless LAN
Soft blocked: no
Hard blocked: yes

[code]....

View 6 Replies View Related

Networking :: Cannot Ping Gateway Server Within Windows Networking Environment

Jul 11, 2011

I am trying to get a Linux (Slackware 13.37) working in a Windows networking environment. The IT support for this organisation does not extend to Linux support, so I'm limited in what help I can get for this.

I'm trying to get to the point where I can get to the internet to download what I need on this Linux machine.

The situation is this (*fictitious addresses used) -My Linux machine uses a fixed IP address (10.100.150.21)
My Windows machine uses a DHCP assigned IP address (10.100.150.213)Both Linux and Windows machine are configured to access the gateway server (10.100.150.1)So, I can ping the Linux machine from the Windows machine and vice-versa.I can ping the gateway machine from the Windows machine.I can browse Windows Shares on the network via SMB from the Linux machine.I CANNOT ping the gateway machine from the Linux machine with the Destination Host Unreachable message being the error message.

For actual internet access I need to access a proxy server but since the Linux machine can't even ping the gateway server, it fails to ping the proxy.Now, I have been told the gateway is a HW based router and for Windows machine they use some software for authentication to connect to the network. This software isn't available for Linux, so that's why I've been told to use a fixed IP address.My experience of networking is pretty basic and most of the Linux setup is done via running Slackware's setup program.

View 12 Replies View Related

Networking :: Defining Two Gateway With Different IPs

Aug 2, 2009

I have a server with 192.1.9.10 ip address and I want to define two gateways with ip: 192.1.9.4 and 192.1.9.254 on it but I don't know how I can do it. I don't have professional information in linux.

View 1 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved