Ubuntu Networking :: 8.04.3 Server - No Outgoing Connection (VMware)
Feb 16, 2010
I'm running Ubuntu 8.04.3 server on my XP Pro SP3 machine using VMWare. I'm trying to set up a static IP address but I can no longer ping anything except my router (not even the XP machine it's hosted on). I'm using "bridged" mode in VMware
Here's my /etc/network/interfaces file:
Code:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.50
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
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Feb 9, 2010
I just installed VMware server 2.02 on a CentOS 5.4 machine. I tried to run 'vmware': it starts via my web browser (firefox) with xdg-open. Then, firefox displays this:
Connection Interrupted
The connection to the server was reset while the page was loading. The network link was interrupted while negotiating a connection. try again.
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Mar 8, 2009
I have no internet in Linux due to my only way to get internet is through my blackberry curve phone sharing ( I think some call this tethering) internet to the pc. It works fine in winblows of course with the provided winblows software, so I booted over to Linux, fired up VMware workstation 6.5, set up the internet in it, and I have internet in my guest os in vmware which is 32 bit xp media center. I right clicked the connection from "network connections" and went to share this connection. Now I'd like to share it to my host os, 64-bit Ubuntu 8.10 in Raid 0. Do I need to be using NAT or Bridged. I've set up internet sharing before but not virtually.
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Jul 6, 2010
I have a problem with my wired connection. The problem started when I tried and failed to install vmware virtual machine.... now I have no internet connection at all that I can see. This is output of:
ifconfig
eth0 Link encap:Ethernet HWaddr 90:e6:ba:97:64:f0
inet6 addr: fe80::92e6:baff:fe97:64f0/64 Scope:Link
[code]....
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Apr 28, 2010
i need is to have http and https allowed, together with mail server (incoming and outgoing) and ftp, ftps and ssh. all other ports have to be closed.
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May 19, 2010
I have installed fc12 on my core2due machine, and I have installed the vmware server on it, its rpm is installed successfully with out any error, after that a message is displayed
The installation of VMware Server 2.0.2 for Linux completed successfully. You can decide to remove this software from your system at any time by invoking the following command: "rpm -e VMware-server".
Before running VMware Server for the first time, you need to configure it for your running kernel by invoking the following command: "/usr/bin/vmware-config.pl".
I tried this command and find the this message
[Akram@localhost Downloads]$ su -c "/usr/bin/vmware-config.pl" Password: Making sure services for VMware Server are stopped.
None of the pre-built vmmon modules for VMware Server is suitable for your running kernel. Do you want this program to try to build the vmmon module for your system (you need to have a C compiler installed on your system)? [yes] yes
Using compiler "/usr/bin/gcc". Use environment variable CC to override.
Your kernel was built with "gcc" version "4.4.2", while you are trying to use "/usr/bin/gcc" version "4.4.3". This configuration is not recommended and VMware Server may crash if you'll continue. Please try to use exactly same compiler as one used for building your kernel. Do you want to go with compiler
"/usr/bin/gcc" version "4.4.3" anyway? [no] yes
What is the location of the directory of C header files that match your running kernel?[/usr/src/linux/include]
Now it asks me in last lines that "What is the location of Directory of C header files that match your running kernal?"
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Jun 3, 2011
I open this thread after an unsuccessful long search over the Web. Essentially what I want is to block the outgoing connection of a program. All I know about this program is its name and so I don't have any information regarding the ports it utilizes or the address it may contact.
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Sep 11, 2015
I would like to log and drop outgoing connection attempts, but the log is not showing the destination IPs.I have the following Iptable rules for my browser:
Code: Select alliptables -N LOGGING
iptables -A OUTPUT -j LOGGING
iptables -A LOGGING -j LOG --log-prefix "browser connections: " --log-level 6
iptables -A LOGGING -j DROP
Only after removing the DROP line it works.
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Jul 19, 2009
Just something that struck me while working on our virtual servers today.
I have bonded 3 NICs at the host in Ubuntu Server 8.04 LTS. They are using mode 0 for Round-robin. Point is to increase the speed/performance of all the servers, but mainly the fileserver. The fileserver is a virtual server running Ubuntu Server 8.04 LTS on VMware Server 2.0.
1) I noticed the NIC in the slave OS reported link speed as 1000 and Im unable to change it as the NIC (virtual one) doesnt support it. Does this not really matter, as the NIC doesnt exist, and it will run at higher speeds anyway? Or do I have to remove the bond on the host, bridge all 3 interfaces from the host to the slave OS, and then make a bond in the slave OS?
2) While at it, does mode 0 only increase performance on data being sent from the host or does it also increase the available incoming bandwidth?
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Apr 22, 2010
I have my router configured so that it drops outgoing telnet connections (and other protocols I don't use). It's a 2wire gateway. 192.168.1.65 is the internal IP of my ubuntu box.I'm trying to figure out what normal network traffic looks like and whether I should be worried by this log entry. At the time this happened I was testing out TOR (just navigating to a few sites (dell, ubuntu forums, etc.) nothing all that interesting.)
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Jul 27, 2011
I completed the installation of VMWare Server 2.0.2 onto a CentOS 5.4 64-bit distribution. There is a VMware virtual machine file on the server in question, and I want to activate it through the application console.
I did not see anything readily apparent that would facilitate the importing of the virtual machine file. Does anyone have a procedure that can accomplish this task?
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Jan 15, 2011
I have a private server which I stream media from, but since I've installed VMware running Windows 7 and set up Windows to used a bridged connection, so I can access the network drives in Windows. Now that I have done that, I cannot connect to my home server unless I have VMware running.
I only want windows running when I need it, but I need access to my server at all times.
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Aug 13, 2010
I am using Ubuntu 10.04 Lucid and VMware 2.0 server. I have a an XP virtual machine that is needed for work. When I am at home and I place my cat 5 cable to my cisco catalyst switch, my XP VM recognizes the ethernet card on my laptop and bridges fine with ubuntu and works fine and I can get to my network. When I take my laptop to work and I go to a site and I plug it into a World Wide Packet 311 management port on the switch, my XP Virtual Machine does not see the network no matter what setting I set it too(100 full, 10 full, 10 half and etc). It simply says that the network card is disconnect. Ubuntu see the network fine and I can ping and talk to the network without any issues but the VM does not.
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May 25, 2011
i have a problem with configuring samba on a fedora system in Vmware with a vista host.
i should select NAT for networking between vista and Vmware[fedora]?
then what can i do to see shared drive on linux in vmware? internet shared form vista to vmware but samba do not work. when i select network place on fedora i saw this errror : unable to mount location
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Feb 22, 2010
I would like to set disclaimer like content in my meral mail server, so that all the users should be able to get that content automatically in their outgoing mails.
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Feb 22, 2010
What is the easiest way to setup an incoming and outgoing mail server on centos? Without using a control panel, such was webmin.
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May 4, 2011
I want to have separate incoming and outgoing mail servers with smtp authentication.
Server1 will act as incoming mail server
Server2 will act as outgoing mail server
How can i authenticate domains users of Server1 from Server2 for smtp authentication.
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Jul 12, 2011
I run my own mail server. There's only one part that isn't working and I can't seem to figure out why: sending mail from a client - in this case, Thunderbird.
I can send mail off-server just fine if I log in via telnet. I can receive email just fine with Thunderbird.
Here are my relevant configs:
/etc/postfix/main.cf:
Code:
queue_directory = /var/spool/postfix
message_size_limit = 102400000
mailbox_size_limit = 1024000000
command_directory = /usr/sbin
[Code].....
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Jul 20, 2011
I have a minecraft server running on a P4 box running Ubuntu server 11.04 64bit. Now would it be secure, if I allowed ufw to allow outgoing? Or would this be a huge flaw someone could exploit?
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Jan 14, 2010
We run a service in which a customer types in a form and gets a confirmation email after submitting the form. We are on a server with no control panel. We are running CentOS 5.
When we did our testing sendmail sent mails just fine and I was able to receive them. After we went live we found that 75% of our emails are being rejected by other mail servers. Doing research is seems that the headers indicate the emails are coming from 127.0.0.1.
We need to correct this problem, as well as do everything we can to reduce the risk of our mails being marked as spam. We do not receive mail on this server, but rather send mail. We have another email server on another server for receiving mail for our domain, which is already configured with cPanel (which doesn't have a problem).
We can not use cPanel on this server because of certain security restrictions.
I know that sendmail is cryptic to configure. We are willing to switch to Exim if necessary.
As far as installing Exim, I understand it's as easy as:
yum install exim
yum remove sendmail
system-switch-mail (if installed)
But as far as setting up Exim for our needs.
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Jul 17, 2011
I have a ubuntu 10.04 dedicated server that I am having problems with. It intermittently cannot connect to any other servers outside its network.
Code:
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
8 packets transmitted, 0 received, 100% packet loss, time 7008ms
(I have tried a bunch of other ips too and none outside its network are pingable) I'm not sure if this is a problem with my server or a problem with the networking outside the server. I have been emailing my server provider and they keep on insisting the problem is with the server and that their network is working fine. Apparently all of their other servers work and they can login into the gateway and ping 8.8.8.8 from there. So they just want to reinstall the OS, but I thought I'd post here to see if anyone has any ideas.
Here is some info I have gained while troubleshooting: I haven't changed any settings at all on the server for months. I haven't done any updates for about a week. The strangest thing is that this is intermittent, there have been a few times in the last 24 hours where I have been able to ping 8.8.8.8 or other ips, but 98% of the time I can't. I have also tried rebooting the server, which had no effect. I can ping the gateway, and I can ping other servers on the same subnet. I can ssh onto the server from my home internet connection, and I can view webpages on apache, so incoming connections work.
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May 26, 2010
m using Squid 3 for web cache and i want to use multiple outgoing ip addresses. Not 1 ip for 1 client, i want to rotate several outgoing ip addresses to the same client.
Client A --> outgoing IP A
next conection
Client A --> outgoing IP B
and so on
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Jun 10, 2011
i have ip's which are 1.1.1.1 and 1.1.1.2. If i log into 1.1.1.1 the outgoing ip shows up as 1.1.1.1 and if i log into 1.1.1.2 the outgoing ip still shows up as 1.1.1.1. I need to set it so that when i log into a 1.1.1.2 to shows up as 1.1.1.2 as the outgoing. Same for when i log into 1.1.1.1 it shows up as 1.1.1.1 on the outgoing end. I need to know how to set it like this. Anyhelp would be greatly appreciated. I am using my VPS as an SSH tunneling. I would to have it set up so that if i log into 1 account the ip will be x.xx.xx.1 and if i log into another account it would be x.x.xx.2 ect. I have been searching for hrs on thsi stuff and no luck at all.
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Jun 7, 2010
How do I check/setup that only the server can send mail (maybe by IP or hostname)? I have a debian server that sends mail through the PHP mail() function with no problems. The server uses sendmail. My concern is how do I make sure only the server itself can send mails through that server. Because it would be bad if spammers would use it as a relay server.
System:
- Debian Lenny
- PHP5
- Apache2
- MySQL 5
- PHPmyadmin
- Sendmail
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Jun 9, 2010
How could we bcc all outgoing / incoming email through my Sendmail (8.14) Server?
I tried this /etc/procmailrc
:0c
! backupmail@domain.com
But this get looped and backupmail received multiple emails of each for domain.com while sending locally from one user to another user.
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Jul 16, 2010
I m using sendmail-8.13.8-2.el5 along with MailScanner-4.79.11-1
i want to set a rule so that user1@mydomain.com can send only to anotherdomain.com domain. sending mail to any other domain will be rejected. can it be done by sendmail or MailScanner ??
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Jun 8, 2011
is there any way to put Disclaimer words on every outgoing emails (both HTML and Plain text email)? ..
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Jun 30, 2011
I have configured qmail on my CentOS5.5 server. I am planning to divert all the mails sent to one domain to be diverted to another domain. For example, I wish mails sent to user@my.external.domain.com to be seamlessly diverted to user@my.internal.domain.com. I tried.Code: my.external.domain.com:my.internal.domain.com in the smtproutes file. It did not work Also how can I have the reply to address different from the one I sent. Again, I wish, if I send emails from user@my.internal.domain.com.
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Feb 26, 2010
I have sendmail installed in my home machine and also dns is configured and also I have configured mx for mail server. My dns is unregistered and my question is that can I send mail to external account like yahoo or gmail to check whether my is working or not.
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Jul 27, 2011
I'm setting up a server and trying to make it *very* secure. Before I configured my web stack, I was about to install some security packages, Tiger and Samhain, but these packages wanted to install sendmail so that they can send outgoing notifications. From the reading I've been doing, I believe I want postfix instead of sendmail. It is my (perhaps mistaken) belief that installing postfix first will prevent them from installing this sendmail I do not want.
I want to install postfix with the following goals in mind:
* let PHP scripts send mail using the mail function.
* various system notification functions (cron, etc.) will be able to send their emails
* emails destined for root@localhost will be redirected to admin@mydomain.com
* let tiger and/or samhain send their notification emails
* NO INCOMING OR LOCAL MAIL IS PERMITTED. Because mail for my domain is handled by google apps, nobody will be checking mail on this server. Also, this server has very limited disk space. It is therefore very important that we don't have mail accumulating in boxes that will never be checked.
* no unnecessary ports, services, or cron jobs are running.
I've been reading a variety of pages that describe postfix setup on Ubuntu but these articles are imprecise, incomplete, and describe installation of things I don't want like POP/IMAP/etc.
There's also one final wrinkle. I will be setting up postfix to send via Amazon SES.
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