Questions tagged [configuration]

Configuration is a general term that can refer to the arrangement of functional units according to their nature and characteristics. Also, it can refer to software configuration which more suitable for server-related topics.

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59
votes
8answers
7k views

Why would I need a firewall if my server is well configured?

I admin a handful of cloud-based (VPS) servers for the company I work for. The servers are minimal ubuntu installs that run bits of LAMP stacks / inbound data collection (rsync). The data is large ...
32
votes
6answers
8k views

Automatically Configure New Computers

My company is in the process of upgrading all of our users from old Windows XP computers to newer quad-core Win7 computers. This is a good thing - it's long overdue that we upgrade our workstations - ...
17
votes
3answers
8k views

How to fetch ./configure parameters used at last time?

I am upgrading LAMP stack on customer's server and need to ./configure mysql and apache with exact last settings they were compiled with last time. Where do I get these? PHP configure string can be ...
11
votes
3answers
40k views

Setup IIS 7.5 with multiple website bindings and SSL?

On IIS 7.5 I am trying to achieve this with two websites: Default Web Site is bound to: (blank host header port 80 - http) (blank host header port 443 - https) go.example.com www71.example.com the ...
217
votes
13answers
79k views

Any benefit or detriment from removing a pagefile on an 8 GB RAM machine?

I'm running Windows 7 on a dual core, x64 AMD with 8 GB RAM. Do I even need a page file? Will removing it help or hurt performance? Would it make a difference if this is a server or a desktop? ...
288
votes
8answers
599k views

How to bind MySQL server to more than one IP address?

Is there a secret way to bind MySQL to more than one IP address? As far as I can see the bind-address parameter in the my.cnf does not support more than one IP and you can't have it more than once.
18
votes
2answers
64k views

nginx rewrite for an url with parameters

I have an URL of this type: http://www.example.com/?param1=val1&param2=&param3=val3&param4=val4&param5=val5 And I want to redirect it to this one: http://www.example.com/newparam/...
20
votes
8answers
93k views

How do I disable SSLv3 support in Apache Tomcat?

I am trying to reconfigure my Apache Tomcat server to only use TLSv1. However, it is still falling back to SSLv3 using certain browsers. I setup the <connector> tag with the following settings: ...
51
votes
2answers
8k views

Why do I have to edit /etc/sudoers with visudo?

I've noticed that the sudoers file and cron config files act in a special way compared to other config files on Linux. They need to be edited with a special wrapper rather than any text editor. Why is ...
11
votes
2answers
17k views

How to ignore a set of Mac addresses in dhcpd.conf?

Is it possible in dhcpd.conf to ignore requests from a set of MAC addresses? Something like this: host vminstances { hardware ethernet d0:0d:*; ignore booting; }
21
votes
1answer
22k views

How to rotate log based on an interval unless log exceeds a certain size?

From the man page of logrotate: minsize size Log files are rotated when they grow bigger than size bytes, but not before the additionally specified time interval (daily, weekly, monthly, or ...
15
votes
7answers
18k views

SQL Server Files Local or NAS or SAN?

I have to install a new Server with SQL Server 2008, What do you recommend, One server with Raid 10 or the Files in a NAS? What about iSCSI should I use it? What about SAN? The server has 4Gb of ...
11
votes
4answers
56k views

How to configure a real domain name for sender address

I tried to sending out an email using php mail() function but it failed somehow, complaining that a real domain name is required. The following is observed in the maillog: sendmail 4984 r25984: ...
9
votes
5answers
15k views

Outgoing only SMTP server

I want to setup an outgoing only SMTP server on Debian, so my Web-applications will be able to send e-mails via it. I don't want to use another hosts because of security and customizability of my own ...
4
votes
3answers
15k views

IIS Configuration Synchronization for Web Server Farm?

I'm wondering if there is any good/easy way to get the IIS configurations synchronized? I'm going to be setting up a pair of IIS Servers with Network Load Balancing. I can get the data files (html, ...
10
votes
4answers
22k views

How do I set up per-site php.ini files on a LAMP server using NameVirtualHosts?

I have a LAMP server serving a number of different websites using NameVirtualHosts. Until recently having a global php.ini file has been just fine, but recently one of our developers has requested ...
3
votes
1answer
7k views

Load balancing in Nginx with redirect rather than proxy

I want to use Nginx in a bit of an unconventional way. I want to load balance between a few servers, but rather than proxy content for those servers I want to redirect to them. That is, if a ...
37
votes
7answers
58k views

Linux: how to restore config file using apt-get/aptitude?

I've occasionally lost my config file "/etc/mysql/my.cnf", and want to restore it. The file belongs to package mysql-common which is needed for some vital functionality so I can't just purge &&...
34
votes
1answer
32k views

Understanding the nginx proxy_cache_path directive

Suppose I have this nginx config file proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=myCache:8m max_size=100m inactive=1h; What does the keys_zone=myCache:8m mean? There's not much said to ...
27
votes
5answers
32k views

Nginx set_real_ip_from AWS ELB load balancer address

I have a set of Nginx servers behind an Amazon ELB load balancer. I am using set_real_ip (from the HttpRealIpModule) so that I can access the originating client IP address on these servers (for ...
21
votes
3answers
15k views

What is needed to use anycast IPs?

So, there're a bunch of questions on SF about the uses and how anycast IPs are cool. My approach is something more practical. What specifically I need to have to use one of those addresses? Do I need ...
38
votes
1answer
71k views

Declaring multiple ports for the same VirtualHosts

Declare multiple ports for the same VirtualHosts: SSLStrictSNIVHostCheck off # Apache setup which will listen for and accept SSL connections on port 443. Listen 443 # Listen for virtual host requests ...
9
votes
8answers
19k views

Nginx phpmyadmin redirecting to / instead of /phpmyadmin upon login

I am having issues with my phpmyadmin on my nginx install. When I enter <ServerIP>/phpmyadmin and logs in, I get redirected to <ServerIP>/index.php?<tokenstuff> instead of <...
9
votes
2answers
22k views

Custom fail2ban Filter for phpMyadmin bruteforce attempts

In my quest to block excessive failed phpMyAdmin login attempts with fail2ban, I've created a script that logs said failed attempts to a file: /var/log/phpmyadmin_auth.log Custom log The format of ...
16
votes
1answer
8k views

Splitting long lines in a nginx configuration file

In order to not pass garbage to the back-end, I have a strict regex for a location directive. It looks like this: location ^~ "/(some|stuff|more|bar|etc(-testing)?)/[a-zA-Z0-9]+/...(more|restrict)....
4
votes
4answers
6k views

Multiple domains (including www-“subdomain”) on apache?

after messing around a while I decided to ask here: I have a vhost and want to use 2 domains on this server. My apache configuration file looks something like this: NameVirtualHost * <VirtualHost ...
13
votes
3answers
11k views

Nginx includes config files not in order?

Is the order in which Nginx includes configuration files fixed, or random? Apache explicitly states wildcard characters are expanded in alphabetical order. With Nginx it seems this does not apply, and ...
7
votes
3answers
11k views

Understanding exim configuration files

So, I want to understand what's going on with this Exim configuration directory. In /etc/exim4, there's: * exim4.conf.template * update-exim4.conf.conf * conf.d The conf.d has a mess of directories ...
4
votes
3answers
30k views

How to switch proxy settings via script?

There are a number of users in our organization that use their laptops on multiple networks. Each network has its own proxy setting requirements for accessing the Internet and currently, the users ...
7
votes
3answers
10k views

How to make spamassasin reject mail based on score?

I am running Linux with Postfix, Dovecot, Postgrey and spamassasin/spamd. This is my main.cf smtpd_recipient_restrictions = permit_sasl_authenticated, ...
4
votes
5answers
2k views

Can't get PHP to stop showing errors

Contrary to most people's problem I cannot get PHP to stop showing errors, I have in my php.ini display_errors set to off but it still shows them, I have also tried .htaccess, and inline ini_set and ...
6
votes
4answers
10k views

Why won't MariaDB start after upgrade (NO_NEW_PRIVILEGES)

After upgrade of my debian(testing, jessie to stretch) server on DigitalOcean, MariaDB won't start with service mariadb start. I tried to purge all mariadb-* and mysql-* packages, delete configs and ...
6
votes
4answers
63k views

nginx config fails with SSL key/pem (unique case)

I am trying to install SSL on my nginx reverse proxy with certified ssl keys but i get this message when i try to restart server: Restarting nginx: [emerg]: SSL_CTX_use_PrivateKey_file("/etc/nginx/...
5
votes
2answers
7k views

OpenVPN bad source address from client

I have one problem with OpenVPN. There are a lot drops records in the openvpn log file on the server: Mon Oct 22 10:14:41 2012 us=726541 laptop/ххх:1194 MULTI: bad source address from client [192.168....
2
votes
1answer
2k views

Multicast accross the subnets

My application sends some UDP packets on a multicast address. In our office we have 3 subnets connected via routers. Sitting in my subnet I'm able to ping the IP of the other subnet. Will multicast ...
2
votes
2answers
143 views

What do I have to configure on my server to increase security from default?

I am setting up a Windows 2003 machine to host a website, are there any settings that I should pay special attention to in regards to security? In other words, is there dangerous default setting I ...
2
votes
2answers
5k views

How to use a variable in a regular expression in nginx?

I've spent some time trying to find the answer before writing this question: I have several location blocks in my nginx config file that look like this: location ~ ^/(doc|img|bla|foo)/metadata/$ { .....
2
votes
2answers
3k views

SQL Server Remote Connections

I am at my wits end with trying to access a remote SQL Server 2008 R2 Express instance. Here are the following that I have tried. 1) I enabled remote connections in the instance properties. 2) I ...
0
votes
1answer
716 views

extend size of partition

I am asking for help on how to properly extend the size of partition Here is my situation. Running fdisk -l, give this result root@ ~]# fdisk -l Disk /dev/sda: 2000.3 GB, 2000398934016 bytes 255 ...
0
votes
2answers
362 views

How to configure php5 on apache2.2?

I want to configure PHP5 on apache2.2 server. I added LoadModule php5_module "c:/php/php5apache2_2.dll" AddHandler application/x-httpd-php.php # configure the path to php.ini #PHPIniDir "c:/php" ...
0
votes
3answers
126 views

Selecting a webserver configuration

I have a website, which has grown from 10 visits per day, to 100 per day in couple of months, and now to about 800 unique visits per day. So far, I have been using a VPS with 512MB RAM, and shared ...
-1
votes
2answers
4k views

Do partitions needed to be unmounted when resizing a partition?

I have this article http://www.centos.org/docs/5/html/5.2/Deployment_Guide/s2-disk-storage-parted-resize-part.html which is not clear to me. And also someone told me that swap space does not need to ...
67
votes
7answers
21k views

How to check for modified config files on a Debian system?

How to find all Debian managed configuration files which have been changed from the default?
48
votes
7answers
58k views

How can I prevent a DDOS attack on Amazon EC2?

One of the servers I use is hosted on the Amazon EC2 cloud. Every few months we appear to have a DDOS attack on this sever. This slows the server down incredibly. After around 30 minutes, and ...
200
votes
5answers
338k views

command for checking Apache configuration

I'm looking for a command that checks the validity of the config files in Apache server on both Debian and RHEL distros. I need to do this prior to restart, so there will be no downtime.
40
votes
4answers
34k views

Directly editing IIS 7 applicationHost.config configuration file

I know that IIS 7+ now uses XML config files instead of the metabase. I also know that if I edit a web.config file for a given site, IIS automagically detects the changes and implements any ...
15
votes
11answers
13k views

How can I diff two config files?

I've got two snmpd.conf files, one on a server that works, and one that doesn't. How can I diff the two config files while stripping out irrelevant comments and newlines?
25
votes
3answers
8k views

How to write a DRY, modular nginx conf (reverse proxy) with named locations

I'm using nginx mostly as a reverse cachining proxy in front of several gunicon/mod_wsgi applications and of course to server static files. I find that quickly my nginx confs become impossible to ...
34
votes
1answer
33k views

Redis Cluster: (error) MOVED

I have a Redis cluster with the following nodes: 192.168.0.14:6379 master (slots from 0 to 16383) 192.168.0.15:6379 slave (slots from 0 to 16383) 192.168.0.16:6379 master (without slots) ...
13
votes
5answers
33k views

Is there a way to use the Autodiscover feature without Exchange?

The autodiscover method used by Exchange looks great. However I do not have Exchange. It looks like when setting up a mail account the device/mail client looks for a autodiscover.xml file. Is there ...