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1500 questions
54
votes
3 answers

Proxy HTTPS requests to a HTTP backend with NGINX

I have nginx configured to be my externally visible webserver which talks to a backend over HTTP. The scenario I want to achieve is: Client makes HTTP request to nginx which is redirect to the same URL but over HTTPS nginx proxies request over…
Mike
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54
votes
7 answers

Is it okay to use a SSH key with an empty passphrase?

When I first learned how to make ssh keys, the tutorials I read all stated that a good passphrase should be chosen. But recently, when setting up a daemon process that needs to ssh to another machine, I discovered that the only way (it seems) to…
mozillalives
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54
votes
4 answers

How to check cron logs in Ubuntu

I went to /var/log/cron but this file is empty. How to check if crontab is enabled or is running properly or not in ubuntu thanks
John
54
votes
4 answers

How do you get e2fsck to show progress information?

I'm running e2fsk on a very large (1TB+) ext3 disk with e2fsck -v /dev/sda1 from RIPLinux booted with PXE. I get e2fsck 1.41.6 (30-May-2009) /dev/sda1 contains a file system with errors, check forced. Pass 1: Checking inodes, blocks, and sizes and…
Tim Abell
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54
votes
11 answers

SSH via PowerShell

Is it possible to open an SSH session in PowerShell? Currently I use PuTTY but it would be nice if that were not required.
nw.
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53
votes
9 answers

How do I disable TLS 1.0 without breaking RDP?

Our credit card processor recently notified us that as of June 30, 2016 we will need to disable TLS 1.0 to remain PCI compliant. I tried to be proactive by disabling TLS 1.0 on our Windows Server 2008 R2 machine, only to find that immediately after…
Mike
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53
votes
7 answers

filesystem for millions of small files

Which Linux filesystem would you choose for best speed in the following scenario: a hundred million files ~2k file size on average >95% read access pretty random access high concurrency (>100 processes) Note: The files are stored in a deep…
bene
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53
votes
3 answers

Is it valid for a hostname to start with a digit?

Is it valid for a hostname to start with a digit? e.g. 8server From reading RFC 1123 it would appear that this is a valid hostname. However, I'm not clear on whether a hostname can only start with a digit when there is a suffix e.g. 8server.com The…
Mark
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53
votes
8 answers

On IIS, how do I patch the SSL 3.0 POODLE vulnerability (CVE­-2014­-3566)?

How do I patch CVE­-2014­-3566 on a Windows Server 2012 system running IIS? Is there a patch in Windows Update, or do I have to do a registry change to disable SSL 3.0?
Eric Lathrop
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53
votes
12 answers

How much SWAP space on a 2-4GB system?

How should I decide what size to make my swap on a new Linux machine (Debian) with 2-4 GB of RAM? Do I really need swap space?
C. Ross
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53
votes
5 answers

HAProxy graceful reload with zero packet loss

I'm running an HAProxy load balancing server to balance load to multiple Apache servers. I need to reload HAProxy at any given time in order to change the load balancing algorithm. This all works fine, except for the fact that I have to reload the…
Conor Taylor
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53
votes
2 answers

difference between _default_:* and *:* in VirtualHost Context

I want to know the difference between "default:*" and "*:*" in VirtualHost Context. #... ServerName host.example.com #... #... ServerName host.example.com …
Luigi Giuseppe
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53
votes
1 answer

nginx: no permission to bind port 8090 but it binds to 80 and 8080

I'm struggling with some strange permission related behavior: when I configure nginx to listen to port 8080 everything works as expected, but when I use any other port I get something like 2014/01/10 09:20:02 [emerg] 30181#0: bind() to 0.0.0.0:8090…
frans
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53
votes
6 answers

iptables error: unknown option --dport

The command iptables no longer recognizes one of the most commonly used options when defining rules: --dport. I get this error: [root@dragonweyr /home/calyodelphi]# iptables -A INPUT --dport 7777 -j ACCEPT_TCP_UDP iptables v1.4.7: unknown option…
Calyo Delphi
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53
votes
6 answers

Linux Command to find Strings in Binary or non ascii file

Is there any linux command to extracts all the ascii strings from an executable or other binary file? I suppose I could do it with a grep, but I remember hearing somewhere that such a command existed?
Ethan Heilman
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