https://wiki.gazzi.net/index.php?action=history&feed=atom&title=Prontuario 2026-04-21T13:33:24Z Cronologia della pagina su questo sito MediaWiki 1.40.1 https://wiki.gazzi.net/index.php?title=Prontuario&diff=472&oldid=prev 2025-07-07T09:08:33Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="it"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 09:08, 7 lug 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l84">Riga 84:</td> <td colspan="2" class="diff-lineno">Riga 84:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Aumentare dimensione ring buffer</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Aumentare dimensione ring buffer</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ethtool -G enp8s0 rx 4096 tx 4096</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ethtool -G enp8s0 rx 4096 tx 4096</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>📌 Riassunto Visuale</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>📌 Riassunto Visuale</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Categoria Comandi Principali</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Categoria Comandi Principali</div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l91">Riga 91:</td> <td colspan="2" class="diff-lineno">Riga 92:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Performance tuned-adm, sysctl, iostat, vmstat</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Performance tuned-adm, sysctl, iostat, vmstat</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Se vuoi posso anche fornirti:</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Un PDF riassuntivo pronto da stampare</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Una guida Ansible per configurazione automatica</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">O uno script Bash per monitoraggio e tuning automatico</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Fammi sapere!</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td></tr> </table>

Admin https://wiki.gazzi.net/index.php?title=Prontuario&diff=471&oldid=prev 2025-07-07T09:07:53Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="it"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versione meno recente</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versione delle 09:07, 7 lug 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Riga 1:</td> <td colspan="2" class="diff-lineno">Riga 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&lt;<del style="font-weight: bold; text-decoration: none;">p</del>&gt;</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&lt;<ins style="font-weight: bold; text-decoration: none;">pre</ins>&gt;</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>🧰 1. Sistema Operativo</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>🧰 1. Sistema Operativo</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>📄 Informazioni di sistema</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>📄 Informazioni di sistema</div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l100">Riga 100:</td> <td colspan="2" class="diff-lineno">Riga 101:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Fammi sapere!</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Fammi sapere!</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&lt;/<del style="font-weight: bold; text-decoration: none;">p</del>&gt;</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&lt;/<ins style="font-weight: bold; text-decoration: none;">pre</ins>&gt;</div></td></tr> </table>

Admin https://wiki.gazzi.net/index.php?title=Prontuario&diff=470&oldid=prev 2025-07-07T09:05:17Z

<p>Creata pagina con &quot;&lt;p&gt; 🧰 1. Sistema Operativo 📄 Informazioni di sistema Comando Spiegazione Esempio uname -a Mostra info sul kernel, architettura, ecc. Linux srv1 5.14.0-448.el9.x86_64 #1 SMP ... cat /etc/os-release Mostra versione e dettagli della distro Nome della distribuzione: RHEL 9 hostnamectl Imposta o mostra l&#039;hostname hostnamectl set-hostname server1.local 📁 Gestione file Comando Spiegazione Esempio ls -l /home Elenca file in una directory con dettagli File, permessi, ut...&quot;</p> <p><b>Nuova pagina</b></p><div>&lt;p&gt;<br /> 🧰 1. Sistema Operativo<br /> 📄 Informazioni di sistema<br /> Comando Spiegazione Esempio<br /> uname -a Mostra info sul kernel, architettura, ecc. Linux srv1 5.14.0-448.el9.x86_64 #1 SMP ...<br /> cat /etc/os-release Mostra versione e dettagli della distro Nome della distribuzione: RHEL 9<br /> hostnamectl Imposta o mostra l&#039;hostname hostnamectl set-hostname server1.local<br /> <br /> 📁 Gestione file<br /> Comando Spiegazione Esempio<br /> ls -l /home Elenca file in una directory con dettagli File, permessi, utenti, data<br /> cd /var/log Cambia directory Vai alla cartella dei log<br /> cp file1 file2 Copia file1 in file2 cp config.old config.bak<br /> rm file.txt Cancella un file Attenzione! Non recuperabile<br /> du -sh * Spazio occupato da ogni file/cartella 1.2G /var/log<br /> <br /> 🧠 Gestione processi<br /> Comando Spiegazione Esempio<br /> ps aux Elenca tutti i processi Utile per capire cosa gira<br /> top Visualizza processi live ordinati per uso CPU Premi q per uscire<br /> kill -9 1234 Termina un processo con PID 1234 Forzato, usare con cautela<br /> free -h Mostra RAM disponibile e usata Mem: 2.0G used / 4.0G total<br /> <br /> 📦 Gestione pacchetti (YUM)<br /> Comando Spiegazione Esempio<br /> yum install httpd Installa Apache Anche dnf funziona su RHEL 8+<br /> yum remove httpd Rimuove il pacchetto Include le dipendenze inutilizzate<br /> rpm -qa Elenca pacchetti installati `rpm -qa<br /> <br /> 🌐 2. Gestione Network<br /> 📡 Info e diagnostica<br /> Comando Spiegazione Esempio<br /> ip addr show Elenca interfacce e IP enp8s0: 192.168.1.10/24<br /> ip route Mostra la tabella di routing Default gateway, route locali<br /> ping 8.8.8.8 Verifica connettività verso Google CTRL+C per fermare<br /> traceroute www.google.com Percorso fino al server remoto Diagnostica rete<br /> nmcli device status Stato delle interfacce gestite da NetworkManager up/down/disconnected<br /> <br /> 🛠 Configurazione (NetworkManager)<br /> Comando Spiegazione Esempio<br /> nmcli connection show Elenco connessioni configurate Profili di rete<br /> nmcli connection modify enp8s0 ipv4.addresses 192.168.1.100/24 Imposta IP statico <br /> nmcli connection up enp8s0 Attiva una connessione <br /> <br /> 🔍 Diagnostica avanzata<br /> Comando Spiegazione Esempio<br /> ss -tuln Porte TCP/UDP aperte :22 indica SSH<br /> ethtool enp8s0 Info su interfaccia fisica Velocità, duplex, stats<br /> tcpdump -i enp8s0 port 80 Sniffing HTTP Solo se hai tcpdump installato<br /> <br /> ⚙️ 3. Tuning e Performance<br /> 📈 Monitoraggio risorse<br /> Comando Spiegazione Esempio<br /> vmstat 5 Carico di sistema ogni 5 sec CPU, swap, IO<br /> iostat -xz 1 Statistiche dischi (richiede sysstat) Letture/scritture per disco<br /> nmon Monitor interattivo avanzato Usare nmon per CPU, dischi, rete<br /> <br /> 🔧 Sysctl – Parametri kernel<br /> Comando Spiegazione Esempio<br /> `sysctl -a grep tcp` Elenco opzioni TCP<br /> sysctl -w vm.swappiness=10 Tuning uso dello swap Minore = preferisce RAM<br /> echo 0 &gt; /proc/sys/kernel/kptr_restrict Modifica temporanea parametro kernel <br /> <br /> 🛠 tuned – Profili performance<br /> tuned è un demone che applica profili predefiniti ottimizzati.<br /> <br /> Comando Spiegazione Esempio<br /> tuned-adm list Elenco profili disponibili latency-performance, throughput-performance, ecc.<br /> tuned-adm active Profilo attualmente in uso <br /> tuned-adm profile throughput-performance Applica profilo ottimizzato per rete o I/O <br /> <br /> 💡 Esempio reale: migliorare performance di rete<br /> bash<br /> Copy<br /> Edit<br /> # Aumentare buffer socket<br /> sysctl -w net.core.rmem_max=16777216<br /> sysctl -w net.core.wmem_max=16777216<br /> <br /> # Aumentare MTU (solo se supportato)<br /> ip link set dev enp8s0 mtu 9000<br /> <br /> # Aumentare dimensione ring buffer<br /> ethtool -G enp8s0 rx 4096 tx 4096<br /> 📌 Riassunto Visuale<br /> Categoria Comandi Principali<br /> Sistema uname, hostnamectl, yum, ps, free<br /> File ls, cd, cp, du, df, tar<br /> Network ip, ping, nmcli, ethtool, ss<br /> Performance tuned-adm, sysctl, iostat, vmstat<br /> <br /> Se vuoi posso anche fornirti:<br /> <br /> Un PDF riassuntivo pronto da stampare<br /> <br /> Una guida Ansible per configurazione automatica<br /> <br /> O uno script Bash per monitoraggio e tuning automatico<br /> <br /> Fammi sapere!<br /> <br /> &lt;/p&gt;</div>

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