lscpu free lsblk ip nmap ss dig dpkg
lscpu
cat /proc/cpuinfo
grep "model name" /proc/cpuinfo
cat /proc/meminfo
grep -i mem /proc/meminfo
MemTotal: 8131720 kB
MemFree: 5988572 kB
MemAvailable: 6941920 kB
Shmem: 35508 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
free -h
gesamt benutzt frei gemns. Puffer/Cache verfügbar
Speicher: 7,8Gi 1,1Gi 5,7Gi 34Mi 1,2Gi 6,6Gi
Auslager: 1,9Gi 0B 1,9Gi
lsblk -f NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS sda ├─sda1 ├─sda2 vfat FAT32 20BB-2053 505,8M 1% /boot/efi └─sda3 LVM2_member LVM2 001 Yp8034-vidV-M04M-Uz4p-LBey-Tx24-bTtMXd ├─vgmint-root ext4 1.0 c472a895-d938-4ef0-a534-130e28bc658c 13,5G 34% / └─vgmint-swap_1 swap 1 e7e228f0-8d41-417c-9661-145b43771aaf [SWAP] sdb ├─sdb1 xfs f7e6d48d-c1ce-47a6-bc57-b26c3c1a2a7a 9,7G 2% /srv/hdd-1a └─sdb2 xfs ddde8bf2-64a4-49a0-8d9e-44071ac0758d 14,6G 2% /srv/hdd-1b sdc └─sdc1 xfs d20377a9-b657-4166-b979-bd62326660a3 24,4G 2% /srv/hdd-2 sr0
Welche IP-Adresse habe ich
ip a | grep inet
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host noprefixroute
inet 192.168.100.119/16 brd 192.168.255.255 scope global dynamic noprefixroute enp0s3
inet6 2001:9e8:838a:9e00:7113:3f7e:7219:6b64/64 scope global temporary dynamic
inet6 2001:9e8:838a:9e00:a8f9:bc49:a0c1:7892/64 scope global dynamic mngtmpaddr noprefixroute
inet6 fd1b:5812:4378:0:9406:9416:d661:e051/64 scope global temporary dynamic
inet6 fd1b:5812:4378:0:d7da:b7b9:aab2:8feb/64 scope global dynamic mngtmpaddr noprefixroute
inet6 fe80::28d1:aa65:54c5:1d34/64 scope link noprefixroute
Routing
ip r default via 192.168.0.1 dev enp0s3 proto dhcp src 192.168.100.119 metric 100 192.168.0.0/16 dev enp0s3 proto kernel scope link src 192.168.100.119 metric 100
DNS Infos zu einer IP
dig web.de ; <<>> DiG 9.18.39-0ubuntu0.24.04.2-Ubuntu <<>> web.de ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4168 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 65494 ;; QUESTION SECTION: ;web.de. IN A ;; ANSWER SECTION: web.de. 67 IN A 82.165.229.138 web.de. 67 IN A 82.165.229.83 ;; Query time: 127 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP) ;; WHEN: Fri Jan 30 20:58:17 CET 2026 ;; MSG SIZE rcvd: 67
nmap - Zeigt Infos zu der angesporchenen IP https://nmap.org/
nmap z-iq.de Starting Nmap 7.94SVN ( https://nmap.org ) at 2026-01-30 21:00 CET Nmap scan report for z-iq.de (116.203.152.217) Host is up (0.017s latency). Other addresses for z-iq.de (not scanned): 2a01:4f8:1c1a:dd19::1 rDNS record for 116.203.152.217: static.217.152.203.116.clients.your-server.de Not shown: 989 closed tcp ports (reset) PORT STATE SERVICE 80/tcp open http 135/tcp filtered msrpc 139/tcp filtered netbios-ssn 222/tcp open rsh-spx 443/tcp open https 445/tcp filtered microsoft-ds 1984/tcp open bigbrother 3000/tcp open ppp 8081/tcp open blackice-icecap 8082/tcp open blackice-alerts 8084/tcp open websnp Nmap done: 1 IP address (1 host up) scanned in 8.17 seconds
Netzverbindungen ss
ss -tulpen
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
udp UNCONN 0 0 0.0.0.0:5353 0.0.0.0:* users:(("avahi-daemon",pid=702,fd=12)) uid:110 ino:10342 sk:1 cgroup:/system.slice/avahi-daemon.service <->
udp UNCONN 0 0 127.0.0.54:53 0.0.0.0:* users:(("systemd-resolve",pid=588,fd=16)) uid:991 ino:7992 sk:2 cgroup:/system.slice/systemd-resolved.service <->
udp UNCONN 0 0 127.0.0.53%lo:53 0.0.0.0:* users:(("systemd-resolve",pid=588,fd=14)) uid:991 ino:7990 sk:3 cgroup:/system.slice/systemd-resolved.service <->
udp UNCONN 0 0 0.0.0.0:33055 0.0.0.0:*
Debian deb Pakete
dpkg -l
Gewünscht=Unbekannt/Installieren/R=Entfernen/P=Vollständig Löschen/Halten
| Status=Nicht/Installiert/Config/U=Entpackt/halb konFiguriert/
Halb installiert/Trigger erWartet/Trigger anhängig
|/ Fehler?=(kein)/R=Neuinstallation notwendig (Status, Fehler: GROSS=schlecht)
||/ Name Version Architektur Beschreibung
+++-==========================================-==========================================-============-================================================================================
ii 7zip 23.01+dfsg-11 amd64 7-Zip file archiver with a high compression ratio
ii accountsservice 23.13.9-2ubuntu6 amd64 query and manipulate user account information
ii acl 2.3.2-1build1.1 amd64 access control list - utilities
ii adduser 3.137ubuntu1 all add and remove users and groups
ii adwaita-icon-theme 46.0-1 all default icon theme of GNOME
ii alsa-base 1.0.25+dfsg-0ubuntu7 all ALSA driver configuration files
ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files
ii alsa-ucm-conf 1.2.10-1ubuntu5.8 all ALSA Use Case Manager configuration files
ii alsa-utils 1.2.9-1ubuntu5 amd64 Utilities for configuring and using ALSA
ii amd64-microcode 3.20250311.1ubuntu0.24.04.1 amd64 Processor microcode firmware for AMD CPUs
ii anacron 2.3-39ubuntu2 amd64 cron-like program that doesn't go by time