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1500 questions
58
votes
5 answers

How to delete Instances in Amazon EC2 ? Change Pair Key?

How to remove Instances ? I test some Instances and now I terminate it. So, I want to remove it. I can't find delete or remove action. I just found terminate. How to change the pair key ? I don't have pair key for old Instances and I want to…
saturngod
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57
votes
4 answers

Is it possible to change an "Unidentified Network" into a "Home" or "Work" network on Windows 7

I have a problem with Windows 7 RC (7100). I frequently use a crossover network cable on WinXP with static IP addresses to connect to various industrial devices (e.g. robots, pumps, valves or even other Windows PCs) that have Ethernet network…
Rhys
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57
votes
1 answer

Pros and cons of using Windows containers instead of Linux containers for Docker?

I'm installing Docker for Windows (CE) on Windows 10 and the first screen asks me: [  ] Use Windows containers instead of Linux containers (this can be changed after installation) This seems an important decision, yet the Docker documentation, FAQ…
Duncan Jones
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57
votes
9 answers

How can I disable TLS 1.0 and 1.1 in apache?

Does anyone know why i can't disable tls 1.0 and tls1.1 by updating the config to this. SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1 After doing this, i reload apache I do an ssl scan using ssllabs or comodo ssl tool, and it still says tls 1.1…
David
  • 683
57
votes
8 answers

Can I create SSH to tunnel HTTP through server like it was proxy?

Say I have a server and client. I need to create connection from client to a website through server like it was proxy. Is it possible to do this using a SSH tunel, or do I have to install some proxy service to the server?
Jakub Arnold
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57
votes
2 answers

Lets Encrypt with an nginx reverse proxy

Introduction I have a dev server (currently running Ubuntu 14.04 LTS), which I have been using for a while now for hosting various development tools on different ports. Because the ports can be hard to remember I have decided to to use port 80 for…
0x450
  • 673
57
votes
10 answers

How to use DNS/Hostnames or Other ways to resolve to a specific IP:Port

This is a Canonical Question about DNS/Hostnames resolution to IPs/Ports Example 1 I'm running a web server on port 80 and another on port 87. I would like to use DNS so that www.example.com goes to port 87. How can I accomplish this using DNS…
Tom Smykowski
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57
votes
1 answer

how to access host variable of a different host with Ansible?

Let's say I have a host that collects some data and it's in a group [collectors]. I also have hosts in-group [reporters]. So, I want to set a variable on reporters from groups['collectors'][0] IP address. But the playbook for setting up reporters…
hryamzik
  • 827
57
votes
4 answers

Ansible: copy template only when destination file does not exist

I'm using Ansible 1.6.6 to provision my machine. There is a template task in my playbook that creates destination file from Jinja2 template: tasks: - template: src=somefile.j2 dest=/etc/somefile.conf I do not want to replace somefile.conf if it…
Slava Fomin II
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57
votes
3 answers

Configure Nginx as reverse proxy with upstream SSL

I try to configure an Nginx server as a reverse proxy so the https requests it receives from clients are forwarded to the upstream server via https as well. Here's the configuration that I use: http { # enable reverse proxy proxy_redirect …
Alex Flo
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57
votes
5 answers

What's the difference between Windows Server 2008, 2008 SP2 and 2008 R2?

What are the major differences between Windows Server 2008, 2008 SP2 and 2008 R2? Are the code bases for these OSes different? If I'm developing applications for any one of these three, should I be worried that it might not work on the other two?
Samrat Patil
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57
votes
2 answers

ServerAliveCountMax in SSH

What does the ServerAliveCountMax in SSH actually do? I am trying to ensure that when I connect to my server via SSH that the connection remains open for a long period of time instead of the connection dying after a short period of inactivity. This…
John Crawford
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57
votes
4 answers

Relationship between Vagrant, Docker, Chef and OpenStack (or similar products)?

I am a web developer, but I am also interested in a few administrative tasks. Hence, the new move from pure administration to dev-ops comes handy for me. Anyway, I have some problems to put a few things into a relationship. Maybe there isn't any, so…
Golo Roden
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57
votes
2 answers

vSphere education - What are the downsides of configuring VMs with *too* much RAM?

VMware memory management seems to be a tricky balancing act. With cluster RAM, Resource Pools, VMware's management techniques (TPS, ballooning, host swapping), in-guest RAM utilization, swapping, reservations, shares and limits, there are a lot of…
ewwhite
  • 198,150
57
votes
6 answers

Is there a way to permanently set the font and window size in PuTTY?

When I log in with PuTTY, I always have to: change settings appearance font change 8 resize window so that I can see enough text to work with the log files. I don't see where I can save these settings to my saved session. Is this…
Edward Tanguay
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