Really dumb ifconfig question....

How do I use this tool to bind to an IP address on eth1?

My end goal is to write a bash script that:

1. pings another server regularly
2. if it's down, bind to the server's IP address and effectively take
over a website on this server

Maybe there's a tool that does this already?

Thanks,

Matt

On Wed, 27 Jun 2007 08:39:10 -0700, matthuwiler wrote:

> How do I use this tool to bind to an IP address on eth1?
>
> My end goal is to write a bash script that:
>
> 1. pings another server regularly
> 2. if it's down, bind to the server's IP address and effectively take
> over a website on this server
>
> Maybe there's a tool that does this already?
>
> Thanks,
>
> Matt

you want the heartbeat stuff from:
http://www.linux-ha.org/GettingStarted

--
D.A.M. - Mothers Against Dyslexia

see http://www.jacksnodgrass.com for my contact info.

jack - Grapevine/Richardson

(E-Mail Removed) pisze:
> How do I use this tool to bind to an IP address on eth1?
>

You can use manual for ifconfig
example:
ifconfig eth1 xxx.xxx.xxx.xxx broadcast yyy.yyy.yyy.yyy network
zzz.zzz.zzz.zzz

Where:

xxx.xxx.xxx.xxx - is IP address
yyy.yyy.yyy.yyy - is broadcast address of your network
zzz.zzz.zzz.zzz - is network address

> My end goal is to write a bash script that:
>
> 1. pings another server regularly

You can use ping with -c xxx option (xxx - is number of packets)
or use: nmap -nsP x.x.x.x | grep Host (x.x.x.x - server ip address)

Try hping if you want more advanced tool

> 2. if it's down, bind to the server's IP address and effectively take
> over a website on this server
>
> Maybe there's a tool that does this already?
>

I don't know

> Thanks,
>
> Matt
>

On Jun 27, 1:25 pm, Komuch <kom...@--USUN-TO--komuch.pl> wrote:
> matthuwi...@gmail.com pisze:
>
> > How do I use this tool to bind to an IP address on eth1?
>
> You can use manual for ifconfig
> example:
> ifconfig eth1 xxx.xxx.xxx.xxx broadcast yyy.yyy.yyy.yyy network
> zzz.zzz.zzz.zzz
>
> Where:
>
> xxx.xxx.xxx.xxx - is IP address
> yyy.yyy.yyy.yyy - is broadcast address of your network
> zzz.zzz.zzz.zzz - is network address
>
> > My end goal is to write a bash script that:
>
> > 1. pings another server regularly
>
> You can use ping with -c xxx option (xxx - is number of packets)
> or use: nmap -nsP x.x.x.x | grep Host (x.x.x.x - server ip address)
>
> Try hping if you want more advanced tool
>
> > 2. if it's down, bind to the server's IP address and effectively take
> > over a website on this server
>
> > Maybe there's a tool that does this already?
>
> I don't know
>
> > Thanks,
>
> > Matt

Thank you for this! Question though... What is the "network" option?
I actually don't have another physical nic, so the interface would be
eth0:1 (I think?)--type on my part. Here is the ifconfig outpt for
eth0 (ips have been changed slightly)

Link encap:Ethernet HWaddr 00:C0:9F:14:82:3F
inet addr:216.93.159.21 Bcast:216.93.159.127 Mask:
255.255.255.224
inet6 addr: fe80::2c0:9fff:fe14:823f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:111181552 errors:0 dropped:0 overruns:0 frame:0
TX packets:124104208 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:3938277490 (3.6 GiB) TX bytes:4189971174 (3.9 GiB)
Base address:0xbc80 Memory:fc3e0000-fc400000

Is the network the netmask? I tried putting the Mask info into the
network option of ifconfig, but it returned "network: Unknown host"

Thanks again for your help!!

Matt

On Jun 27, 1:23 pm, Jack Snodgrass <jacks_temp_id_ind...@verizon.net>
wrote:
> On Wed, 27 Jun 2007 08:39:10 -0700, matthuwiler wrote:
> > How do I use this tool to bind to an IP address on eth1?
>
> > My end goal is to write a bash script that:
>
> > 1. pings another server regularly
> > 2. if it's down, bind to the server's IP address and effectively take
> > over a website on this server
>
> > Maybe there's a tool that does this already?
>
> > Thanks,
>
> > Matt
>
> you want the heartbeat stuff from:http://www.linux-ha.org/GettingStarted
>
> --
> D.A.M. - Mothers Against Dyslexia
>
> seehttp://www.jacksnodgrass.comfor my contact info.
>
> jack - Grapevine/Richardson

I will check this out tonight. Thanks for the info!

(E-Mail Removed) wrote:

>
> Thank you for this! Question though... What is the "network" option?

Ups... My fault... There is no network option... Sorry !


> I actually don't have another physical nic, so the interface would be
> eth0:1 (I think?)--type on my part.

Yes, you can do that.
eth0:1 is alias for eth0

Also you can use iproute2, something like this:

ip addr add dev eth0 192.168.1.1/24 brd 192.168.1.255 scope global

and if you want to see ip addresses:
ip addr ls


> Here is the ifconfig outpt for
> eth0 (ips have been changed slightly)
>
> Link encap:Ethernet HWaddr 00:C0:9F:14:82:3F
> inet addr:216.93.159.21 Bcast:216.93.159.127 Mask:
> 255.255.255.224
> inet6 addr: fe80::2c0:9fff:fe14:823f/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:111181552 errors:0 dropped:0 overruns:0 frame:0
> TX packets:124104208 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> RX bytes:3938277490 (3.6 GiB) TX bytes:4189971174 (3.9 GiB)
> Base address:0xbc80 Memory:fc3e0000-fc400000
>
> Is the network the netmask? I tried putting the Mask info into the
> network option of ifconfig, but it returned "network: Unknown host"
>

Yes indeed. Don't use network...

> Thanks again for your help!!
>

You're welcome

On Jun 27, 3:05 pm, Komuch <kom...@--USUN-TO--komuch.pl> wrote:
> matthuwi...@gmail.com wrote:
>
> > Thank you for this! Question though... What is the "network" option?
>
> Ups... My fault... There is no network option... Sorry !
>
> > I actually don't have another physical nic, so the interface would be
> > eth0:1 (I think?)--type on my part.
>
> Yes, you can do that.
> eth0:1 is alias for eth0
>
> Also you can use iproute2, something like this:
>
> ip addr add dev eth0 192.168.1.1/24 brd 192.168.1.255 scope global
>
> and if you want to see ip addresses:
> ip addr ls
>
>
>
>
>
> > Here is the ifconfig outpt for
> > eth0 (ips have been changed slightly)
>
> > Link encap:Ethernet HWaddr 00:C0:9F:14:82:3F
> > inet addr:216.93.159.21 Bcast:216.93.159.127 Mask:
> > 255.255.255.224
> > inet6 addr: fe80::2c0:9fff:fe14:823f/64 Scope:Link
> > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > RX packets:111181552 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:124104208 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:100
> > RX bytes:3938277490 (3.6 GiB) TX bytes:4189971174 (3.9 GiB)
> > Base address:0xbc80 Memory:fc3e0000-fc400000
>
> > Is the network the netmask? I tried putting the Mask info into the
> > network option of ifconfig, but it returned "network: Unknown host"
>
> Yes indeed. Don't use network...
>
> > Thanks again for your help!!
>
> You're welcome - Hide quoted text -
>
> - Show quoted text -

Awesome... got it working. Thanks for the help guys.