
Archive for the ‘Security Solution’ Category
Residential Proxies – route your internet traffic through real IP addresses assigned by Internet Service Providers (ISPs) to everyday homeowners and household devices
Sonntag, November 1st, 2026Google Chrome OS Version 156.0.8078.74 – steht zum Download bereit
Donnerstag, Oktober 29th, 2026Linux on Debian- and Ubuntu-based systems – the purpose of ‚unattended-upgrades‘ & ’needrestart‘ is to keep the computer current with the latest security and other updates automatically
Donnerstag, Oktober 22nd, 2026root@pve-tailcat-02:~# apt-get updates -y
root@pve-tailcat-02:~# apt-get install unattended-upgrades
Reading package lists… Done
Building dependency tree… Done
Reading state information… Done
unattended-upgrades is already the newest version (2.12ubuntu9).
Solving dependencies… Done
0 upgraded, 0 newly installed, 0 to remove and 26 not upgraded.
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# apt-get install needrestart
Reading package lists… Done
Building dependency tree… Done
Reading state information… Done
needrestart is already the newest version (3.11-1ubuntu2).
Solving dependencies… Done
0 upgraded, 0 newly installed, 0 to remove and 26 not upgraded.
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# vi /etc/needrestart/needrestart.conf
$nrconf{restart} = ‚a‘;
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# systemctl edit apt-daily.timer
[Timer]
OnCalendar=
OnCalendar=hourly
RandomizedDelaySec=10m
Successfully installed edited file ‚/etc/systemd/system/apt-daily.timer.d/override.conf‘.
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# dpkg-reconfigure -plow unattended-upgrades
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# apt-config dump APT::Periodic
APT::Periodic „“;
APT::Periodic::Update-Package-Lists „1“;
APT::Periodic::Unattended-Upgrade „1“;
root@pve-tailcat-02:~#
root@pve-tailcat-02:/var/log# systemctl status unattended-upgrades.service
● unattended-upgrades.service – Unattended Upgrades Shutdown
Loaded: loaded (/usr/lib/systemd/system/unattended-upgrades.service; enabled; preset: enabled)
Active: active (running) since Thu 2026-10-22 12:54:29 CEST; 1h 27min ago
Invocation: 19d7cf72aeb64c0ebf423e9817ff841f
Docs: man:unattended-upgrade(8)
Main PID: 8797 (unattended-upgr)
Tasks: 2 (limit: 7681)
Memory: 14.6M (peak: 14.9M)
CPU: 207ms
CGroup: /system.slice/unattended-upgrades.service
└─8797 /usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown –wait-for-signal
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# unattended-upgrades -d
upgrade result: True No packages found that can be upgraded unattended and no pending auto-removals
Extracting content from /var/log/unattended-upgrades/unattended-upgrades-dpkg.log since 2026-10-22 14:29:39
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# apt list –upgradable
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# less /var/log/dpkg.log
…
2026-10-23 06:57:51 upgrade zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.1 1:1.3.dfsg+really1.3.1-1ubuntu3.2
2026-10-23 06:57:51 status triggers-pending libc-bin:amd64 2.43-2ubuntu2.4
2026-10-23 06:57:51 status half-configured zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.1
2026-10-23 06:57:51 status unpacked zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.1
2026-10-23 06:57:51 status half-installed zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.1
2026-10-23 06:57:51 status unpacked zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.2
2026-10-23 06:57:51 startup packages configure
2026-10-23 06:57:51 configure zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.2 <none>
2026-10-23 06:57:51 status unpacked zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.2
2026-10-23 06:57:51 status half-configured zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.2
2026-10-23 06:57:51 status installed zlib1g:amd64 1:1.3.dfsg+really1.3.1-1ubuntu3.2
2026-10-23 06:57:51 startup packages configure
2026-10-23 06:57:51 trigproc libc-bin:amd64 2.43-2ubuntu2.4 <none>
2026-10-23 06:57:51 status half-configured libc-bin:amd64 2.43-2ubuntu2.4
2026-10-23 06:57:51 status installed libc-bin:amd64 2.43-2ubuntu2.4
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# grep -A 2 „Commandline:.*upgrade“ /var/log/apt/history.log | tail -n 3
Commandline: /usr/bin/unattended-upgrade
Upgrade: zlib1g:amd64 (1:1.3.dfsg+really1.3.1-1ubuntu3.1, 1:1.3.dfsg+really1.3.1-1ubuntu3.2)
End-Date: 2026-10-23 06:57:51
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# vi /var/log/unattended-upgrades/unattended-upgrades-dpkg.log
Unpacking zlib1g:amd64 (1:1.3.dfsg+really1.3.1-1ubuntu3.2) over (1:1.3.dfsg+really1.3.1-1ubuntu3.1) …^M
Setting up zlib1g:amd64 (1:1.3.dfsg+really1.3.1-1ubuntu3.2) …^M
Processing triggers for libc-bin (2.43-2ubuntu2.4) …^M
Disabling Ubuntu mode, explicit restart mode configured
Restarting services…
/etc/needrestart/restart.d/systemd-manager
systemctl restart rsyslog.service ssh.service systemd-journald.service systemd-networkd.service systemd-resolved.service
Service restarts being deferred:
systemctl restart apt-daily-upgrade.service
systemctl restart networkd-dispatcher.service
systemctl restart systemd-logind.service
systemctl restart unattended-upgrades.service
No containers need to be restarted.
No user sessions are running outdated binaries.
No VM guests are running outdated hypervisor (qemu) binaries on this host.
Log ended: 2026-10-23 06:57:53
root@pve-tailcat-02:~#
PHP2Shell – ein Pflichtvideo für Administratoren
Donnerstag, Oktober 22nd, 2026Tailscale ‚tailcat‘ v0.7.0 – connects machines over an encrypted connection even when they are on different networks worldwide
Montag, Oktober 19th, 2026Tailscale ‚tailcat‘ – is both an open-source Go package and a CLI tool using that package it lets you run a server side listener and a client to connect to that server moving bidirectional bytes back and forth
root@pve-tailcat-01:~#
root@pve-tailcat-01:~# ./tailcat >> remote_logs.txt
# Selected bootstrap relay region 303, Frankfurt
# 🐈 Server listening with new address: <tcp…QEv>
root@pve-tailcat-0a:~#
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# echo „Server-Neustart durchgeführt um $(date)“ | ./tailcat <tcp…QEv>
root@pve-tailcat-02:~#
root@pve-tailcat-01:~#
root@pve-tailcat-01:~# cat remote_logs.txt
Server-Neustart durchgeführt um Tue Oct 13 09:36:34 UTC 2026
root@pve-tailcat-01:~#
root@pve-tailcat-02:~# echo „Server-Neustart durchgeführt um $(date)“ | ./tailcat <tcp…QEv>
root@pve-tailcat-01:~#
root@pve-tailcat-02:~#
root@pve-tailcat-01:~# cat remote_logs.txt
Server-Neustart durchgeführt um Tue Oct 13 09:36:34 UTC 2026
Server-Neustart durchgeführt um Tue Oct 13 09:58:13 UTC 2026
root@pve-tailcat-01:~#
root@pve-tailcat-01:~#
root@pve-tailcat-01:~# ./tailcat genkey –key=pve-tailcat-01
# wrote file to /root/.config/tailcat/keys/pve-tailcat-01.private.json
<tcp…pIA>
root@pve-tailcat-01:~#
root@pve-tailcat-01:~# ./tailcat genkey –list
pve-tailcat-01
root@pve-tailcat-01:~#
root@pve-tailcat-01:~#
root@pve-tailcat-01:~# cat tailcat.sh
while true; do
/root/tailcat serve –key=pve-tailcat-01 >> /root/tailcat.log ;
sleep 1 ;
done
root@pve-tailcat-01:~#
root@pve-tailcat-01:~# crontab -l
* * * * * pgrep -x „tailcat“ > /dev/null || /root/tailcat.sh
root@pve-tailcat-01:~#
with Linux
root@pve-tailcat-02:~# vi tailcat.sh
#!/bin/bash
sleep $(( (RANDOM % 59) + 1 ))
echo „$(date +“%d.%m.%Y %H:%M:%S“) Tracking $(uname -n)“ | /root/tailcat <tcp…QEv>
root@pve-tailcat-02:~#
root@pve-tailcat-02:~# crontab -l
00-59/5 * * * * /root/tailcat.sh
root@pve-tailcat-02:~#
with Windows
C:\> notepad C:\Logs\tailcat.bat
set /a „rand=(%RANDOM% %% 59) + 1“
timeout /t %rand% >nul
echo %%Date%% %%Time:~0,8%% Tracking %%ComputerName%% | C:\Logs\tailcat.exe <tcp…QEv>
C:\>
C:\> schtasks /create /tn „tailcat“ /tr „C:\Logs\tailcat.bat“ /sc minute /mo 5 /ru „NT AUTHORITY\SYSTEM“
C:\> schtasks /Query /TN „tailcat“ /V
C:\>
Citrix NetScaler ADC and Citrix NetScaler Gateway – Security Bulletin for CVE-2026-107406
Dienstag, Oktober 13th, 2026
Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the following updated versions as soon as possible
Security Bulletin for CVE-2026-107406
Citrix NetScaler ADC and Citrix NetScaler Gateway 14.1-73.46 and later releases
Citrix NetScaler ADC and Citrix NetScaler Gateway 13.1-64.29 and later releases of 13.1
Citrix NetScaler ADC 14.1-FIPS 14.1-73.46 FIPS and later releases of 14.1-FIPS
Citrix NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1.37.283 and later releases of 13.1-FIPS and 13.1-NDcPP
Google Chrome OS Version 155.0.8059.40 – steht zum Download bereit
Mittwoch, Oktober 7th, 2026Citrix NetScaler ADC and Citrix NetScaler Gateway – Security Bulletin for CVE-2026-88771 CVE-2026-88772 CVE-2026-88773 CVE-2026-88774 CVE-2026-88775 CVE-2026-88776 CVE-2026-88777 and CVE-2026-88778
Montag, September 28th, 2026Citrix NetScaler ADC and Citrix NetScaler Gateway 14.1 BEFORE 14.1-73.37
Citrix NetScaler ADC and Citrix NetScaler Gateway 13.1 BEFORE 13.1-64.23
Citrix NetScaler ADC FIPS BEFORE 14.1-73.37 FIPS
Citrix NetScaler ADC FIPS and NDcPP BEFORE 13.1-37.279
Ludwig-Maximilians-Universität München (LMU) – Cyberangriff und dabei sind Daten von Studierenden abgeflossen
Sonntag, September 20th, 2026Google Chrome OS Version 153.0.8010.48 – steht zum Download bereit
Mittwoch, September 16th, 2026Bundesamt für Sicherheit in der Informationstechnik (BSI) – eine Fritz!Box Funktion wird zum Risiko
Samstag, September 12th, 2026
Es geht um den Fernzugriff der es ermöglicht auch von außerhalb des eigenen Zuhauses über das Internet auf den Router zuzugreifen diese Verbindung kann jedoch ein Einfallstor für Angreifer darstellen weshalb das Bundesamt für Sicherheit in der Informationstechnik (BSI) zur Vorsicht rät
Google Chrome OS Version 152.0.7977.83 – steht zum Download bereit
Sonntag, September 6th, 2026AI Workflow Automation N8N 2.36.8 – how to record a Wireshark packet capture with AI by exporting packet details as text and feeding them into an AI model
Freitag, September 4th, 2026At first LLMs cannot open raw „*.pcap“ files directly you must first convert the data into a readable format and do not try to upload millions of rows use Wireshark display filters (like http ip.addr == 192.168.1.1 or tcp.flags.syn == 1) to isolate the suspicious or relevant traffic
FRITZ!Box Packet Sniffer – capture network traffic directly on the FRITZ!Box and record it live using Wireshark
Example of a Wireshark Display Filter for an IP client in a home lab
!ip.dst==192.168.1.0/24 && ip.src==192.168.1.182 || !ip.src==192.168.1.0/24 && ip.dst==192.168.1.182
Example of an export via the command line using tshark
root@js-FUTRO-S740:/tmp# tshark -r /tmp/wireshark_LONG.pcapng -Y ‚!ip.dst==192.168.1.0/24 && ip.src==192.168.1.182 || !ip.src==192.168.1.0/24 && ip.dst==192.168.1.182‘ -w /tmp/wireshark_SHORT.pcapng
root@js-FUTRO-S740:/tmp# tshark -r /tmp/wireshark_SHORT.pcapng > /tmp/wireshark_SHORT.txt





