hi all, currently my websites are sharing one server, also having bind running on that server for all of them. I am now breaking the sites on to different machines.
So what would you do on bond/dns?
I was thinking of making two servers as nameservers, one master, one slave, for all my domains. For resolution of the server itself I was originally going to make a recursive caching nameserver for the domains to go to.
However, instead I was thinking of running bind as a caching server on each websites machine, with a couple extra points to online servers like googles (8.8.8.8, 8.8.4.4)
I was hoping to limit cpu/mem needs by putting the recursive/caching on a separate machine, but perhaps it is better to put it on each machine.
what would you do?
Bob Hoffman writes:
hi all, currently my websites are sharing one server, also having bind running on that server for all of them. I am now breaking the sites on to different machines.
So what would you do on bond/dns?
I was thinking of making two servers as nameservers, one master, one slave, for all my domains.
I'd make 3, one master and 2 slaves, keep the master behind a strict firewall, let the slaves face the public internet.
For resolution of the server itself I was originally going to make a recursive caching nameserver for the domains to go to.
However, instead I was thinking of running bind as a caching server on each websites machine, with a couple extra points to online servers like googles (8.8.8.8, 8.8.4.4)
If you don't have privacy issues you can use google's. There's also Level3: 4.2.2.1-6. See which gives you lower latency.
I was hoping to limit cpu/mem needs by putting the recursive/caching on a separate machine, but perhaps it is better to put it on each machine.
No need to run a dns server on each machine; run a couple of caches in your network and it should be enough; maybe use google/level3 as a tertiary nameserver, just in case.
-- Nux! www.nux.ro
Hi everyone, I was creating a script and i found something i can't figure out.
#/bin/bash for i in $(cat certificates.txt) do echo $i done
I expected this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
but i got this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
any ideas how to fix this? i mean, how can i get the whole line instead of word by word?
---------------------------------- Alejandro Rodriguez Luna E-mail: el_alexluna@yahoo.com.mx Movil: 044-311-112-86-41 ----------------------------------
________________________________
--- On Fri, 2/10/12, Alejandro Rodriguez Luna el_alexluna@yahoo.com.mx wrote:
From: Alejandro Rodriguez Luna el_alexluna@yahoo.com.mx Subject: [CentOS] script regular expression To: "CentOS mailing list" centos@centos.org Date: Friday, February 10, 2012, 1:29 AM Hi everyone, I was creating a script and i found something i can't figure out.
#/bin/bash for i in $(cat certificates.txt) do echo $i done
I expected this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
but i got this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
any ideas how to fix this? i mean, how can i get the whole line instead of word by word?
Try: while read i;do echo $i;done < certificates.txt
Thanks Sheraz
On Thursday 09 February 2012 23:38:51 sheraz naz wrote:
#/bin/bash for i in $(cat certificates.txt) do echo $i done
Bad practice.
Try: while read i;do echo $i;done < certificates.txt --
That's the right solution, but don't forget to always quote your variables "$i"
Regards
PS: you sometimes might need "read -r"
Hello Alejandro,
On Thu, 2012-02-09 at 23:29 -0800, Alejandro Rodriguez Luna wrote:
#/bin/bash for i in $(cat certificates.txt) do echo $i done
(As people already pointed out in case the input is coming from a file you should use a redirect.)
What you see has to do with the internal field separator (IFS), which is usually set to space, tab and newline. Each of these characters is considered a field separator i.e. a break point in your list. You can read up on this at http://www.tldp.org/LDP/abs/html/internalvariables.html#IFSH .
Regards, Leonard.
On Thu, 9 Feb 2012, Alejandro Rodriguez Luna wrote:
Hi everyone, I was creating a script and i found something i can't figure out.
#/bin/bash for i in $(cat certificates.txt) do echo $i done
I expected this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
but i got this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
any ideas how to fix this? i mean, how can i get the whole line instead of word by word?
This will make it work your way.
-------------------------------------------------------------------- #!/bin/sh
IFS=" " for i in `cat certificates.txt` ; do echo $i done --------------------------------------------------------------------
Cheers,
Steve
Steve Brooks wrote:
On Thu, 9 Feb 2012, Alejandro Rodriguez Luna wrote:
Hi everyone, I was creating a script and i found something i can't figure out.
#/bin/bash for i in $(cat certificates.txt) do echo $i done
I expected this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
but i got this
RSA Secure
<snip>
Sure will. i is in the list RSA Secure etc. and each word is a member of the list, separated by whitespace. Y'know, it would be a lot easier to do awk '{print $0;}' certificates.txt, which would be exactly what you want.
mark
THanks all who gave me an answer, i found this doc and helped me. Thanks again
http://mywiki.wooledge.org/DontReadLinesWithFor
---------------------------------- Alejandro Rodriguez Luna E-mail: el_alexluna@yahoo.com.mx Movil: 044-311-112-86-41 ----------------------------------
________________________________ De: "m.roth@5-cent.us" m.roth@5-cent.us Para: CentOS mailing list centos@centos.org Enviado: Viernes, 10 de febrero, 2012 9:59:35 Asunto: Re: [CentOS] script regular expression
Steve Brooks wrote:
On Thu, 9 Feb 2012, Alejandro Rodriguez Luna wrote:
Hi everyone, I was creating a script and i found something i can't figure out.
#/bin/bash for i in $(cat certificates.txt) do echo $i done
I expected this
RSA Secure Server Certification Authority VeriSign Class 1 CA Individual Subscriber-Persona Not Validated
but i got this
RSA Secure
<snip>
Sure will. i is in the list RSA Secure etc. and each word is a member of the list, separated by whitespace. Y'know, it would be a lot easier to do awk '{print $0;}' certificates.txt, which would be exactly what you want.
mark
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Alejandro Rodriguez Luna -
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Leonard den Ottolander -
m.roth＠5-cent.us -
Marc Deop -
nux＠li.nux.ro -
sheraz naz -
Steve Brooks