OpenBSD Routers For BGP
Aug 31, 2007
Has anyone here successfully implemented two or more OpenBSD routers for the purpose of BGP'ing between two or more providers?
My intention is to have the following setup, each line is per provider:
--> BSD Router --> Switch --> Bridge Firewall --> Switch --> ...
'''''''''|'''''''''''|''''''''''''''|'''''''''''''''|
--> BSD Router --> Switch --> Bridge Firewall --> Switch --> ...
'''''''''|'''''''''''|''''''''''''''|'''''''''''''''|
--> BSD Router --> Switch --> Bridge Firewall --> Switch --> ...
The idea would be that I could lose any 15A circuit, switch, firewall or service provider and still remain up. Full routes for the routers. Spanning tree on all the switches.
We have the OpenBSD routers up and running in our lab, I'd say they are 90% ready, but we're having internal routing issues when it comes time to fail-over. I know we'd have an easier time if we used just one router with a NIC per provider, but I was hoping for more redundancy.
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Jun 1, 2007
can i install any sys op in vps? like openbsd?
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Jan 7, 2008
I recently deployed an OpenBSD machine using pf to be a router/firewall for my home LAN, using NAT and sitting between our cable modem and our switch. It seems to work great.
But I just noticed an 'active' connection to a website... It's been open for 19 hours. 12KB of traffic has flowed over the connection, and the machine on the local end that initiated the connection is a laptop that's been offline for hours.
My question is twofold:
- Why hasn't this been dropped, after hours of inactivity?
- Short of restarting everything, is there a way to instruct PF to drop the connection / lose state information on it?
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Jan 7, 2008
OpenBSD I just installed a package from ports:
cd /usr/ports/sysadmin/freedt/
make && make install
It worked fine, but I realized that I actually don't want this installed, and I can't, for the life of me, figure out how to uninstall a package using ports!
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Mar 25, 2009
I am on a tight budget for a Cisco firewall. I am browsing and seeing some affordable options in the x600 series.
Please tell me, which series is best?:
1600
2600
3600
The higher the better?..
Also what about submodels, like is 1650 better than 1600?
And how can I tell how much DRAM each one can take up to?
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Mar 29, 2007
I do not know if this is the right forum to post on, or if this is even the right site since this is not technically "Web Hosting" related, however it is the largest technical community I know of.
I have been setting up small networks in various branches of a medical company. I am using a linksys wired router connected to a static IP through a SDSL modem. The DHCP is disabled, and the two computers and the print server have also been assigned static IPs.
The problem I am having is that the linksys router will work fine, and then go offline.
The linksys router will no longer be pingable internally. Unplugging the router from the power briefly then plugging it back in resolves the problem temporarily. Sometimes it will become unresponsive again within 30 seconds to a minute, however other times it will go days without this problem occuring.
I thought it might be a defective router, however I took it back and got a replacement, however this is continuing to occur, so it must be something else. The two computers are Windows XP with static IPs set to 10.88.102.xxx as well as the print server. and the subnet mask is 255.255.255.0. The gateway has the IP 10.88.102.1. The mask is set as the same on the router side. The DNS server IPs are the ones given by the ISP and are defined in both the client TCP properties and on the router.
I figured since the network was so small, it would make sense to just buy a cheap linksys router, however the response I got from someone at experts-exchange says that this is just the MO of the crappy residential end of linksys. This surprises me since linksys is a division of cisco.
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Jan 24, 2008
However..it's time to learn.
There is no doubt in my mind I'm going to Houston. The prices they have..it's unreal. Take a look:
[url]
And that's just one. The real fun starts when they start beating each other's quotes.
Ok..on to what need here:
If I have a cage at Level 3..is there a way to estimate routing/switching needs on a per-rack basis? In other words..can you estimate: Ok 1 full rack...say...30 servers..and you're bringing in one of those 100mbps eth drops...to start.
and you want capacity for..say..three more racks from the getgo.
Is there software for this? Or can you guesstimate on ip use-how many ips you think you'll need routing for?
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Apr 4, 2008
I have a lot of dedicated IP accounts that I want Exim to send mail from (in other words, not to use the shared/primary IP of the server).
Has anyone successfully configured cPanel/Exim to do such a thing, such as this:
[url]
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Sep 11, 2007
We have the requirement to guarantee bandwith to one of our clients.
We have a large collection of vlans and we either need to guarantee bandwith to a set and from a set of IP's or a vlan.
We currently throttle using rate-limit but wan't to dedicate 2mb of our 10mb leased line to 1 client.
We are using a cisco 3600 running IOS 12.0.
Has anyone got any ideas as to how we can go about this?
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May 20, 2008
I have a server with several sites hosted on it. Randomly, a site user will find that they can no longer connect to any of the sites on the server - but they can connect to the rest of the Internet. When this happens, the sites themselves are fine and everyone else can connect without any problems.
The only way the affected user can view sites on the server again is to reboot their router - at which point everything is fine.
why this would happen? I have a CentOS (Red Hat Enterprise) Linux server with DirectAdmin, Apache, PHP/MySQL - the usual. I'm thinking that there must be some kind of network setting which is allowing this to happen, but I can't for the life of me work out what it is.
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Jan 21, 2008
My roommate ran into this problem a few weeks ago. He could not connect to a webserver. Turns out it is the way that some of the ports are being handled when passive FTP is used.
I was wondering if a lot of web hosting companies are seeing some complaints of (passive) FTP not working properly? And who are you blaming?
He had to install some firmware updates to the Linksys router as well but then that started to crash the Internet connection (something we cannot have). So the router update was uninstalled.
He had to do quite a bit and finally started to use the control panel to upload. He has not tried FileZilla yet but I tried it on my system to connect to his server and it failed.
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