Re: IPChains Firewall and Failover

2000-07-17 Thread Benjamin Scott
On Mon, 17 Jul 2000, Derek Martin wrote: > Sure, but it hardly matters, since if this is a firewall and your tcp/ip > stack has gone south, then you're still dead, because you won't be routing > packets! For that matter, if your TCP/IP stack has gone south, odds are the rest of the kernel proba

Re: IPChains Firewall and Failover

2000-07-17 Thread Derek Martin
On Mon, 17 Jul 2000 [EMAIL PROTECTED] wrote: > In a situation where there was issue, bug, exploit, in the tcp/ip stack > which caused ip communication to go dead then serial line communication > may also be affected, because the Heartbeat Package uses an UDP > Heartbeat over ppp when a serial con

Re: IPChains Firewall and Failover

2000-07-17 Thread jflythe
In a situation where there was issue, bug, exploit, in the tcp/ip stack which caused ip communication to go dead then serial line communication may also be affected, because the Heartbeat Package uses an UDP Heartbeat over ppp when a serial connection is used. I don't really know if this is the ca

Re: IPChains Firewall and Failover

2000-07-17 Thread Derek Martin
On Mon, 17 Jul 2000, Paul Lussier wrote: > > In a message dated: Mon, 17 Jul 2000 01:27:31 EDT > Derek Martin said: > > >What makes you think this? Heartbeat specifically states that heartbeat > >ethernets should be *dedicated* (as does our documentation, I believe) > >which should prevent tha

Re: IPChains Firewall and Failover

2000-07-17 Thread Paul Lussier
In a message dated: Mon, 17 Jul 2000 01:27:31 EDT Derek Martin said: >It's just not an issue, in the case of a firewall machine. Using shared >SCSI only makes sense if you have shared data. Kimberlite is a great, >reletively inexpensive HA solution, but it's overkill for a redundant >firewall.

Re: IPChains Firewall and Failover

2000-07-17 Thread Paul Lussier
In a message dated: Mon, 17 Jul 2000 01:27:31 EDT Derek Martin said: >What makes you think this? Heartbeat specifically states that heartbeat >ethernets should be *dedicated* (as does our documentation, I believe) >which should prevent that scenario, so if you failed miserably to follow >direct

Re: IPChains Firewall and Failover

2000-07-17 Thread Derek Martin
On Mon, 17 Jul 2000, Derek Martin wrote: > > What makes you think this? Heartbeat specifically states that heartbeat > ethernets should be *dedicated* (as does our documentation, I believe) > which should prevent that scenario, so if you failed miserably to follow > directions and not do that,

Re: IPChains Firewall and Failover

2000-07-17 Thread Paul Lussier
In a message dated: Fri, 14 Jul 2000 18:45:09 EDT Derek Martin said: >But, last I'd been paying attention, heartbeat does allow heartbeat over >serial and ethernet simultaneously, and Alan (Robertson) was thinking >about adding other methods. It's true that shared SCSI is not supported >by hear

Re: IPChains Firewall and Failover

2000-07-17 Thread Derek Martin
On Sun, 16 Jul 2000, Paul Lussier wrote: > > In a message dated: Fri, 14 Jul 2000 18:45:09 EDT > Derek Martin said: > > >But, last I'd been paying attention, heartbeat does allow heartbeat over > >serial and ethernet simultaneously, and Alan (Robertson) was thinking > >about adding other method

Re: IPChains Firewall and Failover (fwd)

2000-07-17 Thread Derek Martin
On Mon, 17 Jul 2000, Derek Martin wrote: > What makes you think this? Heartbeat specifically states that heartbeat > ethernets should be *dedicated* (as does our documentation, I believe) > which should prevent that scenario, so if you failed miserably to follow > directions and not do that, yo

Re: IPChains Firewall and Failover (fwd)

2000-07-17 Thread Derek Martin
> In a message dated: Fri, 14 Jul 2000 18:45:09 EDT > Derek Martin said: > > >But, last I'd been paying attention, heartbeat does allow heartbeat over > >serial and ethernet simultaneously, and Alan (Robertson) was thinking > >about adding other methods. It's true that shared SCSI is not suppo

Re: IPChains Firewall and Failover

2000-07-14 Thread Derek Martin
On Fri, 14 Jul 2000 [EMAIL PROTECTED] wrote: > Are you sure? The Heartbeat documentation show configurations over > serial as well as ethernet. I was thinking of a senario where I install > a fourth network card in the > systems and link them with a crossover cable, and link them with a > serial

Re: IPChains Firewall and Failover

2000-07-14 Thread Derek Martin
On Fri, 14 Jul 2000, Paul Lussier wrote: > Yeah, the Kimberlite stuff is far more robust. > > Heartbeat pretty much depends upon ethernet pinging, which, if you have an I/O > problem and the primary system doesn't respind to the passive, the passive > may try to take over, even though the prima

Re: IPChains Firewall and Failover

2000-07-14 Thread Paul Lussier
In a message dated: Fri, 14 Jul 2000 17:20:05 EDT [EMAIL PROTECTED] said: >Are you sure? The Heartbeat documentation show configurations over >serial as well as ethernet. I was thinking of a senario where I install >a fourth network card in the systems and link them with a crossover cable, >and

Re: IPChains Firewall and Failover

2000-07-14 Thread jflythe
>Paul Lussier wrote: > > In a message dated: Fri, 14 Jul 2000 16:22:24 EDT > [EMAIL PROTECTED] said: > > >I have been looking at the Heartbeat documentation...and it seems to be > >able to do what I need, which is provide a means of setting up a > >redundant firewall that is capable of failover.

Re: IPChains Firewall and Failover

2000-07-14 Thread Paul Lussier
In a message dated: Wed, 12 Jul 2000 17:28:00 EDT [EMAIL PROTECTED] said: >HmmI guess I should be more specific. I have a firewall that runs >with IPChains here in our office. If this server should go down I need >to have a backup server ready to go in place. For the interim I am going >to s

Re: IPChains Firewall and Failover

2000-07-14 Thread Paul Lussier
In a message dated: Fri, 14 Jul 2000 16:22:24 EDT [EMAIL PROTECTED] said: >I have been looking at the Heartbeat documentation...and it seems to be >able to do what I need, which is provide a means of setting up a >redundant firewall that is capable of failover. What do you like/not >like about t

Re: IPChains Firewall and Failover

2000-07-14 Thread jflythe
I have been looking at the Heartbeat documentation...and it seems to be able to do what I need, which is provide a means of setting up a redundant firewall that is capable of failover. What do you like/not like about the heartbeat package? Is there another package that is better that performs the

Re: IPChains Firewall and Failover

2000-07-14 Thread Derek Martin
On Fri, 14 Jul 2000, Paul Lussier wrote: > > In a message dated: Thu, 13 Jul 2000 20:40:50 EDT > Derek Martin said: > > >But you can use heartbeat, which is part of the Linux-HA project. > > yeah, but heartbeat sucks :) It's not THAT bad... -- Derek Martin System Administrator Mission Criti

Re: IPChains Firewall and Failover

2000-07-14 Thread Paul Lussier
In a message dated: Thu, 13 Jul 2000 20:40:50 EDT Derek Martin said: >But you can use heartbeat, which is part of the Linux-HA project. yeah, but heartbeat sucks :) -- Seeya, Paul "I always explain our company via interpretive dance. I meet lots of interesting people

Re: IPChains Firewall and Failover

2000-07-13 Thread Derek Martin
Today, Paul Lussier gleaned this insight: > >Yea, that's what I was trying to describe as possible in the paragraph > >below. I just had a hard enough time doing the 1st picture. The only > >issue would be if you're doing any kind of logging on the firewall, > >although I suppose (I haven't set

Re: IPChains Firewall and Failover

2000-07-13 Thread Paul Lussier
In a message dated: Thu, 13 Jul 2000 12:46:53 EDT Jeffry Smith said: >Yea, that's what I was trying to describe as possible in the paragraph >below. I just had a hard enough time doing the 1st picture. The only >issue would be if you're doing any kind of logging on the firewall, >although I su

Re: IPChains Firewall and Failover

2000-07-13 Thread Jeffry Smith
On Thu, 13 Jul 2000, Paul Lussier wrote: > This is the way things are usually done with LVS, though I don't see why you > couldn't do: > > I > -- > | R | > -- >

Re: IPChains Firewall and Failover

2000-07-13 Thread Paul Lussier
In a message dated: Wed, 12 Jul 2000 23:07:17 EDT Jeffry Smith said: >LVS was developed by Wensong Zhang , homed at >www.linuxvirtualserver.org, and is the basis of Ultramonkey and >Piranha. It's designed for doing redirection of web requests (let's >see how good my text drawing is): > >

Re: IPChains Firewall and Failover

2000-07-13 Thread Paul Lussier
In a message dated: Wed, 12 Jul 2000 21:58:20 EDT "Chad R. Henry" said: >I was going to mention using a Local Director earlier, but hesitated >because of the cost. Retail for a Local Director is ~$25,000! You could use LVS do this too, either via cobbling the various parts together yourself,

Re: IPChains Firewall and Failover

2000-07-13 Thread Paul Lussier
In a message dated: Wed, 12 Jul 2000 14:36:29 EDT [EMAIL PROTECTED] said: >I am looking for information on setting up a IPchains Firewall system >with redundant servers, and failover capability. I have been looking, >and have found some information on commercial products that provide >these capa

Re: IPChains Firewall and Failover

2000-07-12 Thread Jeffry Smith
"Kenneth E. Lussier" wrote: > > What separates web farms, and most other internet services, from > firewalls is that most internet servers don't really care what > there IP address is, and neither does a client of that service. > With a firewall, IP addresses are extremely important. Sure, you >

Re: IPChains Firewall and Failover

2000-07-12 Thread Chad R. Henry
On 12 Jul 2000, at 21:19, Kenneth E. Lussier wrote: > What separates web farms, and most other internet services, from > firewalls is that most internet servers don't really care what > there IP address is, and neither does a client of that service. > With a firewall, IP addresses are extremely i

Re: IPChains Firewall and Failover

2000-07-12 Thread Kenneth E. Lussier
What separates web farms, and most other internet services, from firewalls is that most internet servers don't really care what there IP address is, and neither does a client of that service. With a firewall, IP addresses are extremely important. Sure, you can write an IPChains script using domain

Re: IPChains Firewall and Failover

2000-07-12 Thread Bruce Dawson
I'm not sure what you're looking for, but this may be it: http://ultramonkey.sourceforge.net ...Ultra Monkey is a project to build scalable server solution using Open Source components on the Linux Operating System. Ultra Monkey has grown from a technology demonstration shown at Linux Wo

Re: IPChains Firewall and Failover

2000-07-12 Thread Kenneth E. Lussier
Josh, If I am understanding your needs correctly, you want to have one firewall, but if it should hang, you want anotherone to take it's place automagically, and kill the hung system so that it doesn't come back unexpectedly and hose both of them. If this is correct, then, at the risk of sounding

Re: IPChains Firewall and Failover

2000-07-12 Thread jflythe
HmmI guess I should be more specific. I have a firewall that runs with IPChains here in our office. If this server should go down I need to have a backup server ready to go in place. For the interim I am going to setup another identical system, and just copy the ruleset over to the firewall pe

Re: IPChains Firewall and Failover

2000-07-12 Thread Cole Tuininga
[EMAIL PROTECTED] wrote: > > I am looking for information on setting up a IPchains Firewall system > with redundant servers, and failover capability. I have been looking, > and have found some information on commercial products that provide > these capabilities, but I wanted to know if anyone el

IPChains Firewall and Failover

2000-07-12 Thread jflythe
I am looking for information on setting up a IPchains Firewall system with redundant servers, and failover capability. I have been looking, and have found some information on commercial products that provide these capabilities, but I wanted to know if anyone else on the list knows of any projects,