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2
votes
3answers
42k views

Most simple way of extracting substring in Unix shell?

What's the most simple way to extract substring on Unix shell (with regex)? Simple means: less feature less options less study Update I realized regex itself is conflicting with simplicity, and ...
1
vote
0answers
74 views

Unable to match expression inside If directive no matter what

I have been trying for the past 3 hours trying to match an if statement to define a variable within httpd.conf with no success: <If "%{HTTP_HOST} =~ /[a-z]+/i"> Define test_value "A" ...
4
votes
1answer
5k views

Apache LocationMatch regex behaviour does not seem correct

I am using the LocationMatch directive to set headers upon matching of certain URL patterns: # 1 # Expected matches: //mysite.com/any-page-with-at-least-a-character-and-no-dot <LocationMatch ...
0
votes
1answer
489 views

Nginx Extract Top Directory Name From Request URI

I am in the need of being able to use top directory from the $request_uri, for example: /dir/sub/slug -> /dir I read the answer of this question: How to extract Only the file name from the request ...
0
votes
1answer
1k views

Filter python messages with regex in syslog-ng

I have syslog-ng (v3.4.7) configured to catch almost all messages in their respective logs, but recently I've included some python scripts in crontab and their output just goes to messages or debug ...
1
vote
1answer
836 views

fail2ban-regex matches with strings, but not with log and conf files, why?

If I run fail2ban-regex '31.22.105.115 - - [11/Apr/2014:18:09:54 +0100] "GET /admin/config.php HTTP/1.0" 301 573 "-" "-"' '^<HOST> - - (?:\[[^]]*\] ...
2
votes
1answer
6k views

Nginx redirect all old domain subdomains to new one

I had a very long domain, so I decided to change it to a shorter and more friendly one. But since I have a lot of subdomains (in fact, I have a subdomain wildcard), I wanted to keep the subdomain ...
1
vote
1answer
2k views

fail2ban bad bots apache access log regex

Trying to block some bad bots using fail2ban reading Apache access log and stuck setting up correct regex. The line I want to match in the access log is: 5.10.83.65 - - [18/Mar/2014:09:06:38 +0400] ...
8
votes
4answers
2k views

Searching for literal “> \” using ack-grep

I am looking for lines that literally have a greater than character (a ">") followed by a space followed by a backslash character (a "\") i.e., a line with this: > \ I thought escaping would allow ...
1
vote
1answer
258 views

Postfix regexp map for mailboxes

I need to forward all email that comes to mailbox by some mask to one specific mailbox. For example if recipient mail is 79001234567 it should be forwarded. line from /etc/postfix/main.cf ...
1
vote
1answer
589 views

Redirect all subdomains to main domain with lighttpd and regex

Is it possible to redirect all *.domain.com to my domain.com? I have been messing around with the Regex but without any luck: $HTTP["host"] =~ ".*\.domain\.com" { url.redirect = ...
0
votes
0answers
84 views

Negative match for IP based RegEx

I am looking for negative matching for the below IP based regular expression: True-Client-Ip: ...
2
votes
0answers
51 views

List subfolders somewhere in the path with rsync

I'm developing a program, that will recursively "walk" through Linux repositories, look for PXE-related files and create gPXE configs. I met across a problem with the structure of Ubuntu catalogs on ...
0
votes
2answers
1k views

Nginx RegEx to match a directory and file

I'm wondering if it's possible to match Wordpress directory and specific file in the same location, so at the moment I've got rule to match only the wp-admin directory: ## Restricted Access ...
1
vote
1answer
461 views

Apache RewriteCond: inject string into URI between regex match groups

EDIT This works, needed to use % in place of $ for capture groups: RewriteRule (.*) http://localhost:8081/%1/%{TIME_YEAR}1101%2 [P] Having a hard time sorting this out. Need a date string ...
0
votes
1answer
261 views

Invalidating email addresses from sql dump before import

Synopsis I would like to import production data into the development environment so testing can be done in an almost accurate way. Of course I need to invalidate e-mail addresses as I don't want ...
0
votes
1answer
156 views

Location regex acting weird on NGINX

I come to you today with a super strange comportment on my NGINX reverse proxy. I use it to be the reverse proxy of a tomcat server and set the host configuration like that: server { listen ...
0
votes
1answer
434 views

Using named groups in a DirectoryMatch directive

I have the following directive in my httpd.conf: <DirectoryMatch ^/path/(?P<SI>[^/]+)/logs/bibi> php_admin_value open_basedir /path/?P=<SI>/ </DirectoryMatch> The ...
1
vote
0answers
332 views

Exchange 2013 Mail flow rule using RegEx

We're trying to implement a rule on certain mailboxes that it shouldn't accept an email without a subject. I found documentation from Microsoft on exchange 2010 to Configure a Transport Rule for ...
1
vote
1answer
737 views

Whitelisting valid URL patterns on a NGINX webserver

I want to whitelist only valid URL-patterns on our RESTful webserver / API, using regexs or something. But when googling for some examples I get a little bit suspicious since there is not much ...
8
votes
2answers
27k views

Nginx: location regex for multiple paths with backend

I have two locations in nginx config that work: location ^~ /media/ { proxy_pass http://backend.example.com; } location ^~ /static/ { proxy_pass http://backend.example.com; } How can I combine ...
1
vote
1answer
38 views

Rewrite rule when source contains a '?' [duplicate]

Scratching my head on this. I have an old URL: http://myserver/blog/archive?openview&type=Category&key=Demo and a new URL http://myserver/blog/categories/Demo I'm trying to get ...
1
vote
0answers
67 views

How to convert RewriteCond rules so they work in Lighttpd?

How can I convert this Apache rewrite rules so they work on Lighttpd? This is in fact a .htaccess file, and I need to put those in a lighttpd.conf file. Options +FollowSymLinks RewriteEngine on ...
1
vote
1answer
252 views

fail2ban jail not working properly

I'm trying to block non-available script requests to nginx with fail2ban. # Noscript filter /etc/fail2ban/filter.d/nginx-noscript.conf: # # Block IPs trying to execute scripts such as .php, .pl, ...
0
votes
2answers
816 views

How do I get check_http -r to look for exactly n instances of a string

I have an URL I can query to make sure that my app is running properly. The results are something like below. Checking that "ok" is in the string does not tell me all is well, I need to know that it ...
0
votes
1answer
2k views

Ngnix Rewrite - If URL contains

I'm having a small issue - my error log is filling up with requests to a directory folder on my site (but with added data that shouldn't be there). http://example.com/the-directory/undefined ...
0
votes
1answer
395 views

NGiNX and MediaWiki rewrite regular expression

I am having some problems with regular-expression with rewrite in NGiNX. Here is my config: location /wiki/ { rewrite ^/([^?]*)/([^?]*)(?:\?(.*))? /$1/index.php?title=$2&$3 last; ...
0
votes
1answer
252 views

Lighttpd, regex in conf, path including regex match

The background : - Lighttpd 1.4.28 - Debian 6.0.7 i686 Several developers are using this web server, and each of them has his own virtual host named after "username.mysite.tld". These hosts are ...
1
vote
1answer
139 views

Wrangling sed to find and reformat login date (or, how to kill idle mosh-server processes)

I have an old method of killing idle mosh-server processes, which doesn't work on my new VPS. Here's the old method, which I run in root's crontab to clean up mosh processes that have been idle for ...
0
votes
1answer
348 views

NGINX Drupal Redirect for Mobile

What I want to do; I want mobile users to be redirected to http://m.site.org/mobile-home. Being redirected to the m.bzaeds.org isn't an issue. I also have this working fine in Apache, but the same ...
2
votes
1answer
145 views

Use of backreferences in fail2ban filters possible?

From time to time, I see collections of suspect "File not found" errors in my Apache logs, basically using the pattern File does not exist: /var/www/file, referer: http://my.server.com/file In ...
0
votes
3answers
3k views

htaccess filesMatch exclusion

I have the following directive in my htaccess <filesMatch "\.(gif|jpe?g|png|js|css|swf|php|ico|txt|pdf|xml|html?)$"> FileETag None <ifModule mod_headers.c> Header unset ...
1
vote
0answers
182 views

Nginx - Adding a trailing slash to urls on HTTPS

I am using the below regex to add a trailing slash to any url that doesn't have a railing slash or ends ends with .. rewrite ^([^.]*[^/])$ $1/ permanent; This works fine for http, but when I use ...
1
vote
1answer
1k views

nginx rewrite rules with regex applied to one subdirectory only

I've been frustrated for days trying to figure this out, so any advice/help would be greatly appreciated! I've recently added a section called /links to a site at somehost.com but can't seem to get ...
1
vote
2answers
2k views

Watchguard Firewall WebBlocker Regular Expression for Multiple Domains?

I'm pretty sure this is really a regex question, so you can skip to REGEX QUESTION if you want to skip the background. Our primary firewall is a Watchguard X750e running Fireware XTM v11.2. We're ...
0
votes
0answers
103 views

htaccess Rewrite leading zero in url causing trouble

I have a database with a string column made up of four unique digits attached to each record. I know this isn't the best way to do this but I'm kind of stuck with it. I'm trying to rewrite urls from ...
0
votes
1answer
93 views

serve a static file in nginx based on domain extension.ltd?

I was wondering and already did some extensive searches on how to serve a static file based on the domain.LTD extension. Nginx.conf: error_page 502 /maintenance.html; location = /maintenance.html { ...
0
votes
1answer
153 views

lighttpd Regex for automatic forwarding of subdomains

I have been looking round and I have not found a good way to automatically set the document root for domains automatically. For example: In the DNS, *.mydomain.com points to mydomain.com And in the ...
1
vote
1answer
485 views

nginx + regex, remove all parts of URI except the last one

With an URI like /a-part/some-part/another-part/last-part/?some_param=some_value how do I go about removing everything up to the last part with params and ultimately rewrite it to look like ...
8
votes
1answer
173 views

Is there a tool that can top-ify an input stream?

I come across quite a few use cases where it would be very useful to take input from a (usually newline-delimited) stream and summarise it in a top-like fashion (see top, iotop, etc). A kind of ...
1
vote
1answer
112 views

Problematic Mail Sieve rules

I need top classify my incomming emails using this three rules: if the email was send to any @somedomain.tld, then copy that email to "somedomain_tld" if the email was send to any other @*.tld , ...
0
votes
1answer
452 views

Postfix regex for smtpd_command_filter

Some of my users are using Gmail to send mail to our domain (The mail server for which is hosted on a CentOS 5 machine with postfix). Sometimes, but not all the time, when they do, they get a ...
4
votes
1answer
167 views

Apache MatchRedirect exception regex

I want to redirect any URL that is Https and hasn't start with "system_" to the same URL with http. for exapmle for this url : https://exsite.tld/some/thing/that/not/start/with/pattern to : ...
0
votes
1answer
2k views

Nginx location override does not do what I want, opinions welcome

I have a Nginx configuration file that works for everything except one feature. I have installed a Mediawiki, it works pretty well except at showing pictures (loading them works fine). Whereas (sorry ...
2
votes
1answer
3k views

Regular expressions in server_name with Nginx vhost

I have something I'm trying to do with Nginx. Say I have a few users and a subdomain, and each user has a directory at /home/dev/sites/USER_ID. I would like for USER_ID.dev.example.com to point to ...
1
vote
1answer
2k views

rsyslog - template - regex data for insertion into db

I've been googling around the last few days looking for a solid example of how to regex a log entry for desired data, which is then to be inserted into a database, but apparently my google-fu is ...
-2
votes
1answer
33 views

Regex help for .htaccess

I want to exclude access to certain files using .htaccess files but i need help generating the correct regexp. I want to exclude access to these two files: soft1-pp_1.12-123456789010_amd64.deb ...
0
votes
0answers
48 views

mod_rewrite rule should be matching, but isn't [duplicate]

I've only started editing rewrite rules a few days ago, before now I'd copy and paste them for each case. I've written a rule which as far as I can tell*, should be matching but isn't RewriteRule ...
0
votes
1answer
4k views

Extracting matches in NGiNX with regex without if block

With NGiNX I get a string that contains information that I can extract content with regex. But the only way I found that I could do this, is with if block. Is there any another way? The extracted ...
1
vote
1answer
1k views

Nginx - Redirect request by GET parameters pattern

One of my servers was attacked by DDoS a couple of days ago and it lasted for 4 days. Below are the logs snippet of the request: 36.224.180.253 - - [14/May/2013:03:11:46 +0800] "GET ...