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visits member for 2 years, 6 months
seen Aug 17 at 21:15

Jun
17
comment How do you diagnose packet loss?
It's "Exterminate" and not "Eliminate".
May
11
suggested suggested edit on Linux - real-world hardware RAID controller tuning (scsi and cciss)
Feb
28
awarded  Yearling
Jan
4
answered IOAT enabled but not being used with Linux?
Nov
1
answered Disk performance below expectations
Jul
20
awarded  Popular Question
Feb
28
awarded  Yearling
Feb
9
asked What level of email security in cloud is sufficient to protect from tampering
Jan
1
comment Postfix not sending email issues
Maybe in chroot your resolv.conf is out of date. Look for this file in the /var. Chroot of postfix.
Jan
1
comment Chef bootstrap ec2 — use resulting IP in another chef client's configuration
And this way you dont need to do manually when you change the ip - it's just the matter how much automated you got this
Jan
1
comment Chef bootstrap ec2 — use resulting IP in another chef client's configuration
Well, you can make Master Process yourself, but there are solutions available as well, but they are more complex, so for a single use, you can make a simple loop, that it will do two things: bootstrap servers and configure them, and another one to monitor them. Then you can use e.g. database queue to control the messages. Basically you have two parts - AWS API scripting (AWS tools) and the Cloud Front (Monitoring), so basically you need to be creative.
Jan
1
awarded  Citizen Patrol
Dec
31
answered Chef bootstrap ec2 — use resulting IP in another chef client's configuration
Dec
31
comment Chef - how much abstraction is smart?
One chef server is good for many applications. You just need to backup it once, since it contains the configuration states. There is no problem with scaling chef in a way it supports multiple apps.
Dec
31
answered Media deployment advice
Oct
31
comment Permission denied when trying to run a script at EC2 using ssh
try 'strace ~/script.sh'
Oct
29
comment Forward Error Correction for WAN optimization
Simply FEC doesnt work for WAN.
Oct
29
comment Forward Error Correction for WAN optimization
Well, fec is easy to do yourself, but it's not really good for WAN, but for e.g. satellite broadcast, where single packets are dropped. In WAN, there are either bitrate drops, or few second to few minutes outages, depends how far you are streaming. Check out STCP, it does good job, but for WAN the best is to use proper TCP with rateshaping you do yourself and RT Linux. So you encapsulate in TCP, and when making it UDP again, you need to rateshape it. You need to go zigzag on WAN using TCP. For rateshaping Redhat MRG (centos) is very good.
Oct
28
comment How to send emails from webmail using Amazon Web Services (AWS)?
Well, I thought that SES is not OK for sending business email, but if you say so, I will try it now and see how it works and will let you know here ASAP.
Oct
25
comment How to send emails from webmail using Amazon Web Services (AWS)?
I want to setup a webmail using AWS for business customers, so there are mailboxes, IMAP as well Webmail over HTTPS, virus checker, spam assassin etc, using my own domain name, so I setup SPF and DKIM myself.