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cb5e9c Cédric 2025-12-23 17:45:48
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#### Récup des vmk :
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```shell
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esxcli network ip interface ipv4 get
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```
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#### Disable du firewall :
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```shell
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esxcli network firewall set --enabled false
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```
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#### iPerf en mode serveur :
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```shell
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/usr/lib/vmware/vsan/bin/iperf3.copy -s -B 192.168.100.1 -V
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/usr/lib/vmware/vsan/bin/iperf3.copy -s -B 192.168.100.2 -V
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/usr/lib/vmware/vsan/bin/iperf3 -c 192.168.100.1 -t 10 -V
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/usr/lib/vmware/vsan/bin/iperf3 -c 192.168.100.2 -t 10 -V
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```
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#### Définir la location scratch (core dumps) :
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```shell
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vim-cmd hostsvc/advopt/update ScratchConfig.ConfiguredScratchLocation string "/vmfs/volumes/nas-cesium-ds/.locker-zeus"
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esxcli system settings advanced set -o /UserVars/SuppressCoredumpWarning -i 1
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```
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#### Config des logs locaux :
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```shell
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esxcli system syslog config set --logdir=/vmfs/volumes/nas-cesium-ds/.log-zeus --logdir-unique=true
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```
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#### Des astuces sur les VIB :
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```shell
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esxcli software acceptance set --level CommunitySupported
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esxcli software vib install -d /tmp/MRVL-Atlantic-Driver-Bundle_1.0.2.0-1OEM.670.0.0.8169922-offline-bundle-16081713.zip
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esxcli software sources profile list -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml | grep -i ESXi-6.7 | grep standard | sort
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esxcli software profile update -p ESXi-6.7.0-20190504001-standard -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml
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```
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#### USB Stick ESXi avec macOS :
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```shell
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diskutil eraseDisk MS-DOS "ESXI" MBR diskXXX
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diskutil unmountDisk /dev/diskXXX
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sudo fdisk -e /dev/diskXXX
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f 1
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write
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quit
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```
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Ensuite renommer le ISOLINUX.CFG en SYSLINUX.CFG et éditer le en rajoutant -p 1 sur la ligne APPEND -c boot.cfg
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#### Update ESXi :
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(https://tinkertry.com/easy-update-to-latest-esxi)
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Par exemple (avec le numéro de build et la version, voir https://kb.vmware.com/s/article/2143832 pour le build)
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```shell
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esxcli software profile update -p ESXi-7.0U2c-18426014-standard -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml
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```
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#### Jouer avec les VM en cli :
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```shell
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vim-cmd -> pour avoir la liste des commandes
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vim-cmd vmsvc/getallvms -> pour récup toutes les vm registered sur l'ESXi
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vim-cmd vmsvc/power.on 1 -> demarrer la vm avec l'ID 1
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vim-cmd vmsvc/power.getstate 1 -> récupérer l'état de la VM 1
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```
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#### Analyse SCSI/Stockage sur une VM :
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##### Récupérer le worlgroup ID (id de disque virtuel) d'une vm :
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vscsiStats -l
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```shell
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```
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##### Start de collect de stats scsi du disque virtuel cible :
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```shell
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vscsiStats -t -s -w 966699
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```
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##### Sauvegarde des traces récoltées :
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```shell
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vscsiStats -p all -c -w 966699 > /tmp/vmstats-<vmname>.csv
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```
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##### Stop de la collection des stats
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```shell
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vscsiStats -x
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```
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#### Astuces VSAN :
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##### Récupérer le master node d'un cluster VSAN :
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```shell
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esxcli vsan cluster get | grep 'Sub-Cluster Master UUID' | awk '{print $4}'
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```
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##### Lister les membres d'un cluster VSAN :
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```shell
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cmmds-tool find -t HOSTNAME |grep UUID (par exemple master node)
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cmmds-tool find -t HOSTNAME | grep 5a79d6fe-667b-da0e-0f64-246e969b6920
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```
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Locked file (VSAN)
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```shell
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vim-cmd vmsvc/getallvms
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vim-cmd vmsvc/snapshot.get (vmid)
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vim-cmd vmsvc/snapshot.create [VmId] [snapshotName] [snapshotDescription] [includeMemory] [quiesced]
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vim-cmd vmsvc/snapshot.removeall [Vmid]
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vmfsfilelockinfo -p /vmfs/volumes/<UUID>/VM_name/VM_name-000001-delta.vmdk -v 192.168.x.x -u administrator@vsphere.local
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```
c4fb4a Cédric 2026-02-20 10:17:55
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##### Débugguer des flux réseau sous ESX avec pktcap :
376b7c Cédric 2026-02-20 10:21:20
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Voir notamment ce billet : https://vblog.io/le-manuel-du-parfait-plombier-nsx-t-maj-continue/ \
c4fb4a Cédric 2026-02-20 10:17:55
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D'abord extraire le numéro de port de la nic virtuelle que vous voulez pister :
50db66 Cédric 2026-02-20 10:18:49
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c4fb4a Cédric 2026-02-20 10:17:55
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```shell
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chronos# net-stats -l
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PortNum Type SubType SwitchName MACAddress ClientName
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33558533 4 0 DvsPortset-0 54:b2:03:8d:65:45 vmnic0
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33558535 3 0 DvsPortset-0 54:b2:03:8d:65:46 vmk0
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33558542 5 7 DvsPortset-0 00:50:56:a7:4a:d4 exo.eth0
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33558543 5 7 DvsPortset-0 00:50:56:a7:22:2c exo.eth3
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33558544 5 7 DvsPortset-0 00:50:56:a7:aa:08 exo.eth1
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33558545 5 7 DvsPortset-0 00:50:56:a7:de:c3 exo.eth2
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33558546 5 9 DvsPortset-0 00:0c:29:5f:49:f1 titan.eth0
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33558548 4 0 DvsPortset-0 54:b2:03:8d:65:46 vmnic1
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33558558 5 9 DvsPortset-0 00:50:56:a5:5e:af log.vlab.eth0
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33558559 5 9 DvsPortset-0 00:50:56:a5:c5:bf edge.eth1
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33558560 5 9 DvsPortset-0 00:50:56:a5:08:19 edge.eth0
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33558561 5 9 DvsPortset-0 00:0c:29:4f:7d:3a vcenter.vlab.eth0
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33558562 5 9 DvsPortset-0 00:50:56:85:0b:68 vpnchu.eth0
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```
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Ensuite lancer le pktcap :
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```shell
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chronos# pktcap-uw --switchport 33558562 --dir 2 -o - | tcpdump-uw -enr -
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The switch port id is 0x02001022.
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pktcap: The output file is -.
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pktcap: No server port specifed, select 62906 as the port.
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pktcap: Local CID 2.
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pktcap: Listen on port 62906.
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pktcap: Accept...
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reading from file -, link-type EN10MB (Ethernet)
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pktcap: Vsock connection from port 1032 cid 2.
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21:51:51.607466 00:50:56:ba:e3:48 > 01:00:5e:7f:ff:fa, ethertype IPv4 (0x0800), length 143: 172.16.16.7.51483 > 239.255.255.250.1900: UDP, length 101
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21:51:51.607518 00:50:56:ba:e3:48 > 01:00:5e:7f:ff:fa, ethertype IPv4 (0x0800), length 143: 172.16.16.7.51483 > 239.255.255.250.1900: UDP, length 101
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21:51:51.677905 70:ee:50:05:4c:ea > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: Request who-has 172.16.16.254 tell 172.16.16.151, length 46
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21:51:51.677935 70:ee:50:05:4c:ea > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: Request who-has 172.16.16.254 tell 172.16.16.151, length 46
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21:51:51.733048 00:11:32:85:4c:41 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: Request who-has 172.16.16.43 tell 172.16.16.50, length 46
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21:51:51.733076 00:11:32:85:4c:41 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: Request who-has 172.16.16.43 tell 172.16.16.50, length 46
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21:51:51.812814 00:50:56:85:0b:68 > 00:50:56:a7:4a:d4, ethertype IPv4 (0x0800), length 118: 172.16.16.27.50397 > 80.82.234.188.4500: UDP-encap: ESP(spi=0x05af6f44,seq=0xa), length 76
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(...)
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21:51:57.087427 00:50:56:ba:e3:48 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 63: 172.16.16.7.49652 > 172.16.16.255.32414: UDP, length 21
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21:51:57.087528 00:50:56:ba:e3:48 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 63: 172.16.16.7.59333 > 172.16.16.255.32412: UDP, length 21
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21:51:57.087539 00:50:56:ba:e3:48 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 63: 172.16.16.7.59333 > 172.16.16.255.32412: UDP, length 21
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21:51:57.235970 f4:5c:89:b4:63:f7 > 01:00:5e:7f:ff:fa, ethertype IPv4 (0x0800), length 217: 172.16.16.28.58719 > 239.255.255.250.1900: UDP, length 175
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21:51:57.235985 f4:5c:89:b4:63:f7 > 01:00:5e:7f:ff:fa, ethertype IPv4 (0x0800), length 217: 172.16.16.28.58719 > 239.255.255.250.1900: UDP, length 175
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tcpdump-uw: pcap_loop: error reading dump file: Interrupted system call
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pktcap: Join with dump thread failed.
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pktcap: Destroying session 4.
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pktcap:
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pktcap: Dumped 26 packet to file -, dropped 0 packets.
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pktcap: Done.
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```