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Questions tagged [dynamic]

88 questions
14
votes
2 answers

Dynamic proxy with nginx based on url param

I am loading images from an external site which I want to use in a 3D WebGL canvas. However this is not allowed due to origin. The URL I am generating from the web page is as…
sphvn
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12
votes
4 answers

Securing file system for secure SFTP server

This might not seem as a development question, but in essence it is. Let me explain how. Our main development focus is dynamic content pages. Some of our customers have asked us to allow them space in our servers (which they pay) for their old…
Geo
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8
votes
6 answers

Creating a Dynamic Group in Active Directory with users from a OU

I would like to create a dynamic group with users from a specific OU in my Active Directory. I can do this perfectly using Exchange Dynamic Distribution List, but of course, Ex DDL's are only for mail. There's any way to create this? I've found some…
Vinícius Ferrão
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7
votes
6 answers

Finding out if an IP address is static or dynamic?

I run a large bulletin board and I get spammers every now and again. My moderation team does a good job filtering them out but every time I IP ban them they seem to come back (I'm pretty sure it's the same person on some occasions, as the post…
Joshua
6
votes
3 answers

IPtables whitelist dynamic IP by hostname

I want to limit access to a server to certain IPs using iptables but: One of the IPs is dynamic, a normal ISP home connection which changes from time to time. A subdomain e.g. dynamic.example.org is automatically updated when the IP changes using a…
Tom B
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6
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5 answers

How do you setup a DNS server in order to be able to add records on-the-fly?

I need to host a subdomain-based SaaS application on a bunch of servers. Servers are xx1.example.com, xx2.example.com and so on. I want to have a bunch of yyy.example.com sites hosted on those servers. Because sites are created on the fly, I need to…
GomoX
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5
votes
1 answer

Replacing URI when using dynamic hosts in Nginx reverse proxy

FYI - I suspect this has a very obvious/simple answer (I'm new to nginx) I am using dynamic upstreams as part of my Nginx config. This means using variables in the proxy_pass directive, which instructs nginx to use a resolver instead of…
Hamy
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5
votes
3 answers

Is it possible to define a block in a zone file as constant in Dynamic DNS (using bind)?

bind mangles my zone file every time a DNS update is done. If defining a block as constant isn't possible, is it possible to have 2 or more zone files describing one domain? The intent being one zone file is for fixed RR's and the other for dynamic…
Hermes Conrad
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5
votes
4 answers

DHCP failing to update DNS

We have a Windows Server 2003 SP2 machine that is a domain controller, DNS server, and DHCP server. (We realize that having all three roles running on the same computer is not the optimal configuration but there are no other machines available.)…
ssxuser
5
votes
1 answer

Dynamic Backends with HAProxy

I'm trying to figure out the best way to handle dynamic proxying of HTTP requests. Basically I want to take a dynamic hostname in the form of myname.cust.mydomain.example and then forward requests to an HTTP backend server with the name "myname"…
Jez
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5
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1 answer

MS SQL Server Dynamic Port Range

I understand that a SQL server named instance will default to dynamic ports, and I know HOW to change that to a static IP: BUT, I'm still wondering what that dynamic range will be?
Dave
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4
votes
1 answer

Configuring openldap multimaster replication using cn=config

We currently have a single OpenLDAP server using the cn=config backend. We'd like to add a second OpenLDAP server and configure them for multimaster replication. What do we need to do to enable replication on the existing server and initialize the…
Brad Mace
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4
votes
1 answer

Chef - multiple files dynamic template resource

I'm trying to find a way to apply template resource dynamically on all files which are in a folder inside the cookbook's template folder. something like: Dir.foreach("../templates/default/shared/") do | file | # This is the wrong line... template…
SecondThought
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4
votes
2 answers

How do you set up dynamic cname records?

The project I'm working on requires that we mask AWS EC2 host names with our own subdomains. For example: ec2-176-34-163-40.eu-west-1.compute.amazonaws.com would map to gf53ef.domain.com and ec2-123-31-124-60.eu-west-1.compute.amazonaws.com would…
Matt Votsikas McLean
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3
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1 answer

How to specify an IP range in a Security Group inbound rule?

How do I specify an address range? I get a cryptic error every time I try to do so. According to whois, my ISP'S address range is 98.0.0.0 - 98.15.255.255. The error given is: "The source needs to be a CIDR block or a Security Group ID." Their…
S M
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