CentOS 5 Networking :: OpenVPN Doesn't Work On CentOS 5.3 With Windows Client?

Jun 27, 2009

This will be a little long (having read Phil's 'how to ask questions' FAQ). I'm trying to get OpenVPN working between my CentOS server and some Windoze laptops running XP. There seems to be plenty of sample
config files available, but to date, none of them have worked for me. Pulling out my trusty Wireshark, I've found some clues,

BACKGROUND:
My local subnet (NAT'ed by my gateway router) is 192.168.52.x. My router has been configured with a conduit (port-forward) for port 1194 (the standard OpenVPN port), which points towards my CentOS server.The CentOS server is .52.112, and the supplicant is .52.110. I have tried the lient both inside and outside my local subnet, with no difference in events or outcomes.

[Code]...

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CentOS 5 Server :: Openvpn Connect To Samba Share From Windows XP Client?

Sep 15, 2009

I'm trying to set up a VPN connection between our CentOS 5.3 server at work and my bosses XP computer at home. At this point, we are kinda locked into Quickbooks. I'm testing the connection from my XP boot at home to see if it works. I can log into our servicemanuals easily enough from XP at home however, the windows takes forever to update. I have the Samba server only listening on port 445 because is seems to work more efficiently at work. I connect to the Samba shares via linux from home and everything works well but, when I try to do anything with the shares from Windows client at home, it's very slow!

I'm thinking that it must have something either to do with the Windows OpenVPN client or the client.conf file. Is there anything I should look at in the .conf file for answers?

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CentOS 5 :: Dual Booting With Windows 7 - Just Doesn't Work

Oct 2, 2010

I'm a visual effects artist and although many VFX post production houses use linux, I've always used windows because of the programs. At this point, I've migrated to different programs which are also available on linux. The only set of programs I won't have, would be the Adobe Suite. So, I decided to finally start using linux again. I used it back when I was a kid for a few years, but just to have it really. We mainly use macs at work, but I'm switching to linux now.

Since I mainly use Autodesk Maya, the first choice would've been RHEL. Which is why I'm here now, you can guess.

I've downloaded the .iso of CentOS 5.5 and checked it against the hashes and it came out fine. I burned it to a DVD and booted my main computer (I have 3 I plan on installing it onto) and tested the media, came back fine.

I have two HDs, one 1.5TB SATA and one 150GB SATA. The 1.5TB is the C: drive of windows, and I've shrunk it to allow 80GB for linux.

So that is sda. sda1 is the windows partition and I make sda2 ext3 out of the empty space by choosing the custom partition scheme. It installs fine.

However, booting up the computer boots straight to windows. No GRUB.

I've reinstalled many times now, changing the GRUB from sda to sda1 to sda2. Nothing.

[url]

I've adapted that guide to CentOS and tried that, but whenever I select the CentOS option during bootup, the computer instantly restarts itself.

I've tried reinstalling the GRUB via a Live CD like many googled sites say to, but I always get errors.

If I find the /boot/grub/stage1, it says it can't be found.

If I try to setup GRUB, it says /boot/grub/stage1 is unreadable

So, I download the Ubuntu CD and install that. I use the guide previously posted to do the same thing, by installing GRUB onto sda2 where Ubuntu is.

So I pick that option on startup and it brings me to Ubuntu's GRUB menu. It all works fine. CentOS doesn't though.

Ubuntu is using GRUB2, so it has a grub.cfg file. Inside the file near the end, it lists Ubuntu as (hd0,2) and windows as (hd0,1).

That shouldn't be right? What's (hd0,0) then?

The CentOS grub.conf file lists CentOS as (hd0,1) and windows as (hd0,0). That should be correct. But I change it anyway to (hd0,2) and (hd0,1) and it still doesn't work.

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CentOS 5 :: Installed Windows &, But Now Internet Doesn't Work?

Jan 4, 2011

I've just installed Windows &, but now my internet doesn't work. How is that possible?

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Mar 12, 2011

i have a centos 5.5 server running tomcat,oracle xe,apache etc..i would like to be able my windows machine to access this server by name, and not ip, for example have http://backserv:7080 for oracle xe web admin and so on..i know one way is DNS, but if i install oracle on a windows machine in peer-to-peer network, i can allready access with by it's name. o i'm guessing i should do something with samba, wins or something like that.never mind i got now for the REAL complex stuff of insalling web sphere 7 without user interface (need to look for a response file).

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Aug 20, 2009

I am trying to monitor a Centos 5.3 box using SNMP and I am having a lot of trouble getting the data that i need from it. Everytime I try to get information from the UCD-SNMP MIB it returns "End of MIB". It is my understanding that UCD-SNMP is a standard package when Net-SNMP is installed and should always be there. Then why can't I access it? I have tried removing the reinstalling Net-SNMP, but that hasn't worked. My server is update date on all it's patches as well. It is quite old hardware, but I don't believe that should affect SNMP from being gathered. Iptables is down, and I cant' even get it from the local machine.

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Networking :: Iptables Doesn't Work Well Without OpenVPN?

May 31, 2011

my problem is following: I'm running a bridged OpenVPN on my Debian. If the service is running, everything works fine: local and Internet, ftp, mailing from in and outside etc. But, when stopping OpenVPN, sending mails from inside (LAN) fails: I cannot reach smtp (postfix) listening on port 465. And even reaching mailboxes using IMAP gets horribly slow eg. in Thunderbird. Here is my firewall.sh script.

Quote:

#!/bin/sh
echo "
IPTABLES FIREWALL inicializalasa - szures"
# Enter the designation for the Internal Interface's
INTIF="eth0"

[Code].....

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CentOS 5 Networking :: Config Proxy Client Side For CentOS 5

Oct 4, 2010

I've tried to read many of the topics in this forum first and tried to find a solution to my problem, but can't find one.I'm testing CentOS 5.5, it's the first time I'm using a CentOS Linux release.I'm trying to configure the proxy "client side " on it and cannot find how to do it.On other Linux release I've used the ENV variable like "http_proxy" or "HTTP_PROXY" etc etc.This time, I don't know why but it doesn't work.I've put the name and @ip of the proxy in /etc/hosts and tried different version upper/lowercase of "http_proxy" "HTTP_proxy" "ftp_pr.." but it doesn't work.If I configure manually Firefox and puting the name or @ip of the proxy we have on our network, it works.But if I try to use ENV variable it doesn't work...

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Jul 17, 2011

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Quote:

route-delay 3
fast-io
client
dev tun

[code]...

how to get what I need from the ovpn files, and which Authorization Type to choose in the Network Manager VPN configuration GUI, and what to put in the blanks?

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Dec 10, 2010

We have a Blade server connected to a two internal ESM Cisco switch. We want to have a active-backup configuration with bonding. We follow the documentation and we hace configured the next:

Centos 5.5
ETH0:
[root etc]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Broadcom Corporation NetXtreme II BCM5709S Gigabit Ethernet
DEVICE=eth0

[Code].....

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Problem: Can't get bridging to work properly.

I'll start by saying that most of this is built inside of a 64bit ESXi 4.1.0 server. Should be obvious by the picture below.

Trying to set up a bridged CentOS box. Ultimate goal is to set up a Transparent Firewall. The machine labeled 'Desktop' is a Windows XP running DHCP. It gets assigned an Internet routeble IP address. At this point, nothing is running a firewall.

Symptoms:
Gateway can ping CentOS bridge
CentOS bridge can ping gateway
CentOS bridge can resolve DNS names and ping FQDNs on the Internet.
CentOS bridge CAN NOT ping Desktop

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ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.0kmprq
ipw2200: Copyright(c) 2003-2006 Intel Corporation
ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
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I saw a post about this elsewhere and downloaded some firmware drives from [URL] and installed then. But, I'm really out of my league when it comes to this kind of stuff.

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Jan 27, 2009

I have a Centos 5.2 VM running under Windows 2008 Hyper-V. If I add two "legacy Nic's" and bridge them, everything appears to work fine. However, if I remove the legacy nics and replace them with two synthetic nics (linux integration components), the nics seems to function fine UNTIL I add them to a bridge.This VM will eventually be used as a DansGuardian/Squid transparent proxy for a local library. The logical layout is represented by the attached jpg image. I have also included the ifcfg- scripts for the adapters and bridge for both scenarios.It would also be useful if someone else has Hyper-V with the integration components and dual physical nics to see if they can reproduce my symptoms on their box.Legacy Adapters:

ifcfg-br0:
DEVICE=br0
BOOTPROTO=dhcp

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Dec 27, 2010

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Feb 9, 2011

I have set up my Openvpn Server in Centos and it is working fine. Windows XP clients are able to connect the OpenVPN Server and access the network. This is a customized OpenVPN Gui Client. Now I need the customized OpenVPN Client for MS Windows 7Bit. I am using openvpn-2.1.4-install OpenVPN Client in MS Windows 7 64Bit. This is a executable and working fine in the said architecture. Now I want to compile this version. I am following the given steps at : [URL].. As per the direction i have copied the source from 2.1.4 and tried to compile, but compiled copy is giving the error " An error occurred Installing the TAP-Win32 Device Driver". I have tried this compilation by making every change and hack but all in vain.

I think that there are some certain steps which are missing and not documented any where. And sure that someone in forum will know the facts.

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Apr 4, 2011

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From my svpn.log when trying access:

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Sep 21, 2010

I have openvpn tunnel setup between two CentOS servers. One of the CentOS servers also acts as a DHCP server for some client computers.

Server A= OpenVPN server
Server B= OpenVPN client (connects to Server A with OpenVPN)

The two CentOS servers can ping each other (172.16.0.0/24) via the tun0.

However, client computer connected to Server B (DHCP server) can't reach 172.16.0.1 (which is the OpenVPN server).

I think I am missing some routing in my "ip route show". Following is the full picture:

What command can I issue to get this fixed? something along ip route add?

There is no firewall service on both end. service iptables stop! I can't bridge eth1 and tun0 as DHCP server might mess up the other side. I can't do a push of "redirect-gateway def1" because then clients loose their IP as they send DHCP requests to Server A.

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Mar 25, 2011

I also am having this problem so any help would be appreciated.

Personally, I don't know if I have anything set up correctly. That would be something I need guidance on if anyone can offer some.

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Jul 29, 2011

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May 20, 2009

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Apr 6, 2009

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Jun 14, 2010

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Jul 13, 2010

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Apr 28, 2010

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Aug 22, 2011

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<source>
<vendor id='0x0d7a'/>
<product id='0x0001'/>
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[Code]...

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Dec 1, 2009

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