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heathub's questions

Martin Hope
heathub
Asked: 2011-03-21 23:45:05 +0800 CST
  • 2

I have read some articles about amazon ec2 instances and ebs. I found out that, the data on the instance are not persistent, which means, if the hardware fails, instance shut down, I will lost my data. Hence, what is your backup plan for this case?

Q1 How do you backup the necessary files and database (mysql)?

Q2 I created/mounted an EBS volume. What should I do with it? (How big should I assign the Volume, by default, I assigned 1 GB, is it enough? Or is it extensible?)

Q3. Whats the snapshots in EBS? (for backup?)

My OS: Amazon Linux Using ec2 instance, installed httpd and mysql

backup files amazon-ec2 database amazon-ebs
Martin Hope
heathub
Asked: 2011-03-21 19:48:28 +0800 CST
  • 1

Please advice me, what products(amazon aws) should I use for my application (quite simple).

  • Its a mobile application
  • user takes picture and upload to server
  • Others users will be able to load pictures from images

Q1. I am thinking of using EC2. (I am not sure if S3 can be elastic, easily extend the storage or not). Thus please, advice which products I needed for my apps? (EC2, RDS, S3, SImpleDB etc)

Q2. If I were using EC2, should I install httpd, mysql, php on 1 instance? Or should I separate it?

upload amazon-web-services pictures
Martin Hope
heathub
Asked: 2011-03-02 23:29:26 +0800 CST
  • 7

My Server OS: Amazon Linux

I am trying to set up ftp. I have:

  • Installed vsftpd

  • open port 20-21

  • open port 1024 - 1048

Basically, I followed every of these steps

  • Start vsftpd service (the status indicate [ok])

I use filezilla for my ftp client.

Here is my setting/configuration:

Host: ec2-XX-XX-XXX-XX.compute-1.amazonaws.com

Port: -(blank, but I have tried 20 and 21 though)

Server Type: FTP - File Transder Protocol

Logon Type: Normal

Username: (tried root and ec2-user)

Transfer mode: Tried passive and active

I always has this error:

Status: Waiting to retry...
Status: Resolving address of ec2-XX-XX-XXX-XX.compute-1.amazonaws.com
Status: Connecting to XX.XX.XXX.XX:21...
Error:  Connection timed out
Error:  Could not connect to server

Have I missed any configuration/settings?

EDIT

After execute the /sbin/iptables -L -n

Here is the result:

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ftp amazon-ec2