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Debian GNU/Linux Consultancy
Debian is a free operating system (OS) for your server. An operating system is the set of basic programs and utilities that make your computer run. Debian uses the Linux kernel (the core of an operating system), but most of the basic OS tools come from the GNU project; hence the name GNU/Linux.
We know "The Debian Way". We are literally paving the Debian way so who else could manage your Debian based servers better?
Linux system based solutions
Install, set up and maintain a system based on Debian/GNU Linux.
- Samba PDC (Primary Domain Controller)
- Web server Apache
- PHP
- Rewrite engine
- Reverse proxy
- Web server Caudium
- JSP and servlet container Jakarta Tomcat
- Application server WebSphere, JBoss
- SMTP server
- Qmail
- Postfix
- Exim
- Currier
- POP3, IMAP server
- SQL server
- MySql
- Postgresql
- Firebird
- LDAP slapd
- Streaming server
- Firewall/router (iptables)
- FTP server (Proftpd)
- DNS server (BIND 8/9, djbdns)
- DHCP server
- CVS repository
- SSH OpenSSH + secure tunnels
- Jabber (XMPP)
- Asterisk VoIP
Network Security
- Firewall (iptables)
- IDS SNORT, LIDS
- Nessus Security Scanner
- Network usage monitor NTOP, tcpdump
- VPN solution
- Spam filter and server based email antivirus
Ninja Tux
Managed Web Hosting
At Laposa we can set up and maintain a fully managed secure webserver configured to your needs. Whether you're a small web design house wanting your own hosting or a company after global redundant hosting, we can configure, setup and manage a bespoke solution for your needs.
Office File Server
We have experience with build and long term support large office file servers including Domain Controllers. Central storage space for your company with Windows ACL. Our file server setup includes Time-Machine like backup solution.
Latest Debian Security Advisory
DSA-5931-1 systemd - security update
The Qualys Threat Research Unit (TRU) discovered that systemd-coredump
is prone to a kill-and-replace race condition which may allow a local
attacker to gain sensitive information from crashed SUID processes.
Additionally systemd-coredump does not specify %d (the kernel's per-
process "dumpable" flag) in /proc/sys/kernel/core_pattern allowing a
local attacker to crash root daemons that fork() and setuid() to the
attacker's uid and consequently gain read access to the resulting core
dumps and therefore to sensitive information from memory of the root
daemons.
<p>
Details can be found in the Qualys advisory at
<a rel="nofollow" href="https://www.qualys.com/2025/05/29/apport-coredump/apport-coredump.txt">https://www.qualys.com/2025/05/29/apport-coredump/apport-coredump.txt</a>
<p>
<a href="https://security-tracker.debian.org/tracker/DSA-5931-1">https://security-tracker.debian.org/tracker/DSA-5931-1</a>
DSA-5930-1 libavif - security update
Multiple vulnerabilities were discovered in libavif, a library for
handling .avif files, which could result in denial of service or
potentially the execution of arbitrary code.
<p>
<a href="https://security-tracker.debian.org/tracker/DSA-5930-1">https://security-tracker.debian.org/tracker/DSA-5930-1</a>
DSA-5929-1 chromium - security update
Security issues were discovered in Chromium which could result
in the execution of arbitrary code, denial of service, or information
disclosure.
<p>
<a href="https://security-tracker.debian.org/tracker/DSA-5929-1">https://security-tracker.debian.org/tracker/DSA-5929-1</a>
DSA-5923-2 net-tools - regression update
The update for net-tools announced in DSA 5923-1 introduced a regression
for ifconfig always showing zero value packet counters. Updated packages
are now available to correct this issue. Two additional stack-based
buffer overflow flaws are addressed in this update.
<p>
<a href="https://security-tracker.debian.org/tracker/DSA-5923-2">https://security-tracker.debian.org/tracker/DSA-5923-2</a>
DSA-5928-1 libvpx - security update
It was discovered that a double-free in the encoder of libvpx, a
multimedia library for the VP8 and VP9 video codecs, may result in
denial of service and potentially the execution of arbitrary code.
<p>
<a href="https://security-tracker.debian.org/tracker/DSA-5928-1">https://security-tracker.debian.org/tracker/DSA-5928-1</a>