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Posts Tagged ‘bofh’
Web Watchdog
Published November 28th, 2007, updated March 7th, 2008.Ipmap
Published October 17th, 2007, updated April 10th, 2008.Ipmap is a GTK-based IP address grapher, inspired by an XKCD comic and glTail. It reads data from standard input and maps IP/size pairs on a grid (see the screenshot). Due to this simple interface, it is easy to create filters for a variety of data sources. The program comes along with some example filters, including tcpdump ouput, Apache/ProFTPd’s access logs and Squid logs.
Squid LDAP Authentication
Published May 9th, 2007, updated February 29th, 2008.This is a proposed patch for squid_auth_ldap, the authentication helper of the Squid Cache. It increases the maximum filter length to 32k and thus, enables long search filters. Wow:-)
# patch for squid-2.6.STABLE11, enables long search filters # author: Benjamin Schweizer# diff -r squid-2.6.STABLE11/helpers/basic_auth/LDAP/squid_ldap_auth.c \ squid-2.6.STABLE11-sickos/helpers/basic_auth/LDAP/squid_ldap_auth.c 32a33,34 > * 2007-05-09: Benjamin Schweizer> * - Increased buffer size to support long search filters. 343c345 < char buf[256]; --- > char buf[32768]; 566c568 < while (fgets(buf, 256, stdin) != NULL) { --- > while (fgets(buf, sizeof(buf), stdin) != NULL) { 653c655 < char filter[256]; --- > char filter[32768];
As of Aug 27, 2007, this patch is included in the cvs tree.
GnuDIP/MiniDIP Password Encryption
Published January 18th, 2007, updated February 29th, 2008.This is a patch for GnuDIP’s minidip server. It switches the password storage format from plain text to md5 hashes, so you can copy passwords from GnuDIP to MiniDIP and vice versa. Furthermore, this allows you to use arbitrary characters in your passwords without breaking the format of the config files. Use GnuDIP’s encpass utility to encrypt passwords.
# patch for gnudip-2.3.5, changes auth database to md5
# author: Benjamin Schweizer
# diff -r gnudip-2.3.5/gnudip/sbin/minidip.pl \
gnudip-2.3.5bs/gnudip/sbin/minidip.pl
185c185,187
< $checkpass = md5_hex(md5_hex($checkpass) . '.' . $salt)
---
> # 2007-01-18, schweizer: storing passwords md5 hashed (as in gnudip/mysql)
> #$checkpass = md5_hex(md5_hex($checkpass) . '.' . $salt)
> $checkpass = md5_hex($checkpass . '.' . $salt)
Squid Efficiency Plugin for Munin
Published November 16th, 2006, updated November 25th, 2009.This is a plugin for the Munin monitoring system. It graphs the cache efficiency of your Squid proxy servers and shows nice graphs for average byte and request hits.
2009-11-17: there’s an updated version available with support for squid3
2009-11-25: here’s another update, volker added clean config settings
Kerio Mailserver Storage Format
Published October 12th, 2005, updated February 10th, 2008.Here are some notes on the Kerio Mailserver, version 6.1. My interest lays on the storage as I’m going to do some data injection :-)
kerio/$ ls
store/mail/domain.tld/username/ - that's it. see below. store/mail/domain.tld/#public/ - shared user? store/logs/ - ascii text log files and index for each of them store/queue/nn/* - hashes or maildir or somewhat? store/queue/pickup/ - working directory? store/spamassassin/* - uninteresting store/tmp/* - not interesting
kerio/store/mail/domain.tld/username/$ ls
Calendar - Calendar data, vcal + index Contacts - Contacts, vcard + index Deleted Items - All types + index Drafts - mail? INBOX - mail? Junk E-mail - mail? Sent Items - mail? Tasks - unknown filter.siv - mail filters, perl-like syntax folder.map - shared folders mapping, simple xml settings.usr - serialized php structure stats.usr - unknown sub.fld - optional (mail) folders
kerio/store/mail/domain.tld/username/Folder/$ ls
#assoc/ - unknown #msgs/*.eml - VCALENDAR, VCARD, Mail, whatever subfolders/ - like Folder, unsure where they are linked deleted.fld - ??? unix timestamp + filename index.fld - see below. properties.fld - unknown search.fld - sqlite2 database, somewhat broken; useless (or other format???) sort.fld - unknown, may be cache status.fld - unknown
kerio/store/mail/domain.tld/username/Folder/$ cat index.fld
U00000001 F80000001 S1133 D43032abf M4305f1b7 I0001 CIPM.Appointment
Format:
Unnnnnnnn = file name (#msg/nnnnnnnn.eml)
Fnnnnnnnn = unknown (assuming signed int, always? -2^31+1)
Snnnn = unknown
Dnnnnnnnn = create date (hex encoded unix timestamp)
Mnnnnnnnn = modify date (hex encoded unix timestamp)
Innnn = incremental counter
CIPM.* = file type
… = optional data behind
kerio/store/mail/domain.tld/username/Folder/$ cat deleted.fld
431d8fa3 00000005
Format:
timestamp (hex encoded) + filename
kerio/store/mail/domain.tld/username/Folder/$ cat status.fld
T2 G64590354-03bc-46fa-9d94-b5c19be217d7 V430adb2c U0000000c C00000001 M6 D0 R0 N0 S7514 Auser@domain.tld lrswicda
Format:
T – unknown
G – unique id, probably used to identify folder
V – timestamp, folder create date
U – next filename to use
C – counter?
M – folder type?
D – unknown, some delete flag?
R – unknown
N – unknown
S – unknown
A – mail address / user id + permissions?
That’s all. May be it helps you to tinker with the backend.
Windows Serial Console Daemon
Published May 11th, 2003, updated February 29th, 2008.wconsd is a serial console server for Windows NT/2k/XP. It maps local com ports to an IP socket and makes it accessible with any TCP/IP terminal. I use it with PuTTY to set up routers when no IP address is assigned… PuTTY just feels better than Hyperterminal or TeraTerm;)
→ downlad source code
→ downlad binaries
update: PuTTY 0.59 (Jan 24, 2007) includes native support for serial consoles.
