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seen Dec 20 '13 at 12:32

Sep
17
comment AWS VPC - why have a private subnet at all?
Thanks Tom. I think it's also possible to have 1 public subnet but only assign an ElasticIP to the NAT instance. The other instances on the public subnet will have outbound internet access via the Internet Gateway, and inbound access could be configured via port forwards on the NAT instance. I got the feeling that 2 subnets is the "proper" way, but not seeing a crystal clear reason for it.
Feb
20
comment VPN from my Amazon EC2 instance to my workplace
Thanks for the edits. Helpful and looks nice
Feb
13
comment My DNS is down but can I find records somehow from the DNS from some cache?
I think you use "dig" to query another DNS server. I don't think you need to do anything special to pull it out of the cache, but if the TTL hasn't expired another DNS server may still serve up the old records if you're quick: dig @some.other.nameserver.org your.domain.com (madboa.com/geek/dig)
Feb
12
comment Transferring domain to Amazon Route 53. Being asked for NS server's IP addresses
As indicated in my post, I have no issue finding the NS entries. But Amazon do not list IP addresses for them. Web24 is asking for IP addresses. I'm concerned that perhaps Amazon is only giving out FQDNs because the name servers are clusters, so I was concerned I was making a config error.
Feb
12
comment Transferring domain to Amazon Route 53. Being asked for NS server's IP addresses
That's how I'd normally do it, but the guide over at AWS suggests otherwise. have you read the AWS guide?
Feb
6
comment openVPN disconnect via command line in linux
This takes it down OK, but it doesnt kill the openvpn process. If I want to bring the connection back up again, I have to bring the interface back up, and then I have to kill the openvpn process, and then I have to run openvpn --config <blah> again. I (and I think the OP) was wondering if this is the way it's intended, or if there is a neater way we're just not aware of.
Jan
18
comment Samba: Access trouble from Windows
You're losing me - I'm not understanding what you're saying. I asked earlier " If you log in to the Linux system as the unix user you've mapped the samba user to, are you able to cd into the directory you're sharing and get a list of files? Also, ensure that the unix user you've mapped to is in the "users" group." What was the outcome of that?
Jan
18
comment Samba: Access trouble from Windows
Yes, that's right... -L just shows a list of shares but not their contents. It looks like a permissions issue to me. You didn't comment on the other suggestions I made though... either check that out, or remove the valid users = @users line in smb.conf, set the directory to perms 777, and then one step at a time tighten up the permissions to how you want it, troubleshooting as you go.
Jan
18
comment Samba: Access trouble from Windows
If smbclient -L works but you cant get a list of files in the share, then I wonder if the unix user account that the samba account is mapped to has permissions to that directory. If you log in to the Linux system as the unix user you've mapped the samba user to, are you able to cd into the directory you're sharing and get a list of files? Also, ensure that the unix user you've mapped to is in the "users" group. Use the command "groups <username>" to see what groups that user account belongs to.
Dec
4
comment FTP v/s SFTP v/s FTPS
Plus SFTP operates through a single port only (22). Less issues with firewalls and configuration of them.
Dec
4
comment Running passive FTP in Azure Virtual Machine with vsftpd-linux
Good to know that about Azure
Nov
19
comment AWS VPC - why have a private subnet at all?
Thanks. VPC with pubic+private subnet seems the way to go if AWS would throw in a NAT instance for free. I'm thinking of small deployments and was trying to figure out if the cost of a NAT instance every month was worth the advantages of the 2 subnet config.
Nov
16
comment What's the exact technical difference between a public and private cloud?
(I don't think I've got enough points to comment on other ppl's comments... but it's helpful to read up on Software as a Service (SaaS), Infrastructure as a Service (IaaS) and Platform as a Service (PaaS). "Cloud" can mean many things, but once you read up on those three, it makes a bit more sense. You're dealing with IaaS in your question.
Nov
16
comment What's the exact technical difference between a public and private cloud?
I'm thinking of Amazon.. and you can choose to make VPSs in the private cloud accessible from the internet or not... it's up to you. You'll need to do a bit of reading on Amazon about their VPC (Virtual Private Cloud) product. In the config you describe, it sounds like you're after a VPC with the webserver inside a single public subnet. The webserver will have 2 IP addresses - one public (ElasticIP), and one private. Via the public IP, it can serve internet requests. Via the private, it can VPN to your LAN and talk to your DB server.