Initial commit — SETEC LABS Manager (Setec_CDM)

Flask-based VPS management panel with SSH remote command execution.
Includes E2E encrypted SSH tunnel (AES-256-GCM + Go agent), setup wizard,
security hardening tools, DNS management, firewall configs, monitoring,
backup, and .sec patch update system.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

updates/sec/ubuntu2404_0326.sec

@@ -0,0 +1,57 @@
+# Setec Labs Security Update — Ubuntu 24.04 LTS Noble
+# Release: 2026-03
+# Target: Ubuntu 24.04 (Noble Numbat)
+# Author: seteclabs.io
+# EOL: April 2029 (standard), April 2034 (ESM)
+
+[packages]
+apt-get update -qq
+apt-get install -y --only-upgrade openssl libssl3t64
+apt-get install -y --only-upgrade libgnutls30t64
+apt-get install -y --only-upgrade openssh-server openssh-client
+apt-get install -y --only-upgrade curl libcurl4t64
+apt-get install -y --only-upgrade sudo
+apt-get install -y --only-upgrade systemd libsystemd0
+apt-get install -y --only-upgrade linux-image-generic
+apt-get install -y --only-upgrade nginx
+apt-get install -y --only-upgrade python3 python3-minimal
+apt-get install -y --only-upgrade git
+apt-get install -y --only-upgrade vim-common xxd
+apt-get install -y --only-upgrade ca-certificates
+apt-get install -y --only-upgrade apparmor
+apt-get install -y --only-upgrade libc6
+
+[sysctl]
+net.ipv4.tcp_syncookies = 1
+net.ipv4.conf.all.rp_filter = 1
+net.ipv4.conf.default.rp_filter = 1
+net.ipv4.conf.all.accept_redirects = 0
+net.ipv4.conf.default.accept_redirects = 0
+net.ipv4.conf.all.send_redirects = 0
+net.ipv6.conf.all.accept_redirects = 0
+net.ipv4.conf.all.accept_source_route = 0
+net.ipv4.icmp_echo_ignore_broadcasts = 1
+kernel.randomize_va_space = 2
+fs.protected_hardlinks = 1
+fs.protected_symlinks = 1
+kernel.kptr_restrict = 1
+kernel.dmesg_restrict = 1
+# Noble supports unprivileged userns restrictions
+kernel.apparmor_restrict_unprivileged_userns = 1
+
+[services]
+systemctl restart ssh
+systemctl restart nginx
+systemctl restart apparmor
+systemctl daemon-reexec
+
+[files]
+chmod 600 /etc/ssh/sshd_config
+chmod 700 /root/.ssh
+chmod 644 /etc/sysctl.d/99-setec-update.conf
+chown root:root /etc/sysctl.d/99-setec-update.conf
+
+[custom]
+bash:-:apt-get autoremove -y --purge 2>&1
+bash:-:apt-get -s upgrade 2>&1 | grep -c 'upgraded' || echo '0 remaining upgrades'
+bash:-:pro status 2>/dev/null || echo 'Ubuntu Pro not configured'