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'''NOTE:''' when setting secondary ports in ''nmtui'', always specify jlab default 'DNS servers' and 'Search domains', just in case !!! It looks like it prevents ''/etc/resolv.conf'' from being overwritten under certain circumstances. | '''NOTE:''' when setting secondary ports in ''nmtui'', always specify jlab default 'DNS servers' and 'Search domains', just in case !!! It looks like it prevents ''/etc/resolv.conf'' from being overwritten under certain circumstances. | ||
'''NOTE"''' after changing network, always reboot machine to update ''nmtui''. New links will shows up as ''Wired connection ..'', so run ''nmtui'', and in every new connection change ''Profile name'' from ''Wired connection ..'' to the actual device name, like ''enp0s29u1u6'', to avoid confusion while setting bond later. | |||
'''Local network configuring using nmtui - example''' | '''Local network configuring using nmtui - example''' | ||
Revision as of 11:22, 14 January 2025
Display traffic
nload -i 10000000 -o 10000000 p6p1
netstat -anp | grep <port>
NOTE: when setting secondary ports in nmtui, always specify jlab default 'DNS servers' and 'Search domains', just in case !!! It looks like it prevents /etc/resolv.conf from being overwritten under certain circumstances.
NOTE" after changing network, always reboot machine to update nmtui. New links will shows up as Wired connection .., so run nmtui, and in every new connection change Profile name from Wired connection .. to the actual device name, like enp0s29u1u6, to avoid confusion while setting bond later.
Local network configuring using nmtui - example
┌───────────────────────────┤ Edit Connection ├───────────────────────────┐
│ │
│ Profile name localport1______________________________ │
│ Device E8:EA:6A:40:2F:50 (enp0s20u6)___________ │
│ │
│ ═ ETHERNET <Show> │
│ │
│ ╤ IPv4 CONFIGURATION <Manual> <Hide> │
│ │ Addresses 192.168.0.11_____________ <Remove> │
│ │ <Add...> │
│ │ Gateway _________________________ │
│ │ DNS servers <Add...> │
│ │ Search domains <Add...> │
│ │ │
│ │ Routing (No custom routes) <Edit...> │
│ │ [X] Never use this network for default route │
│ │ [X] Ignore automatically obtained routes │
│ │ [X] Ignore automatically obtained DNS parameters │
│ │ │
│ │ [X] Require IPv4 addressing for this connection │
│ └ │
│ │
│ ═ IPv6 CONFIGURATION <Automatic> <Show> │
│ │
│ [X] Automatically connect │
│ [X] Available to all users │
│ │
│ <Cancel> <OK> │
Bond two network ports together, links to the switch (example for clonfarm21)
nmcli connection add type bond con-name enp_bond ifname enp_bond bond.options mode=802.3ad nmcli connection add type ethernet ifname ens7np0 master enp_bond nmcli connection add type ethernet ifname ens2np0 master enp_bond nmcli connection show
Last command will show follwoing:
NAME UUID TYPE DEVICE enp_bond 969dc408-bb43-49e0-8c29-62965f70f4c7 bond enp_bond ens10f0 f333ab08-b67a-41c9-9108-7658af3435d0 ethernet ens10f0 ens2np0 85e7f4bd-5daf-3095-b207-bdcaf14d903c ethernet ens2np0 ens7np0 5abd79b1-22e9-4210-9262-fc2dbbda51f7 ethernet ens7np0 lo bcf93a26-5114-45c5-b586-9288dfefbb33 loopback lo bond-slave-ens2np0 7961787a-f51f-459d-9bf8-0add8a528679 ethernet -- bond-slave-ens7np0 aa376ad3-fd9f-44a2-8154-04685ce2da72 ethernet -- ens10f1 0c14d2dd-c3bc-4d3d-8c7d-04cded521498 ethernet -- usb0 4fef7067-fb03-4115-ac62-c95a91979384 ethernet --
Now, set bond method to 'manual', and set IP address:
nmcli connection modify enp_bond ipv4.method manual ipv4.address 129.57.69.11/24
Set Routing if needed.
You can use 'nmtui' as well to program all above.
Finally, disactivate both ens2np0 and ens7np0, and activate enp_bond; using 'nmtui', or command 'nmcli connection down/up <connection>'.
NOTE: in our case, enp_bond inheritate mac from ens2np0, but IP from ens7np0; only ens7np0 was registered on jnet.
To delete bond, run following command:
nmcli connection delete enp_bond
Bond two network ports together, links to Maroc electronics (example for clondaq9)
nmcli connection add type bond con-name enp_bond ifname enp_bond bond.options mode=broadcast nmcli connection add type ethernet ifname enp0s20u5 master enp_bond nmcli connection add type ethernet ifname enp0s20u6 master enp_bond nmcli connection add type ethernet ifname enp0s29u1u5 master enp_bond nmcli connection add type ethernet ifname enp0s29u1u6 master enp_bond nmcli connection show nmcli connection modify enp_bond ipv4.method manual ipv4.address 192.168.0.2/24
Deactivate individual ports and activate bond:
nmcli connection down localport0 nmcli connection down localport1 nmcli connection up enp_bond
NOTE: localport0 etc are profile names as it is shown in nmtui, and NOT a device names like enp0s20u5 etc.
nmtui screen should looks like this:
┌────────────────────────────┤ Edit Connection ├────────────────────────────┐
│ │
│ Profile name enp_bond________________________________ │
│ Device enp_bond________________________________ │
│ │
│ ╤ BOND <Hide> │
│ │ Slaves │
│ │ ┌─────────────────────────────────────────────────┐ │
│ │ │ bond-slave-enp0s20u6 ↑ │ <Add> │
│ │ │ bond-slave-enp0s20u5 ▒ │ │
│ │ │ ▮ │ <Edit...> │
│ │ │ ▒ │ │
│ │ │ ▒ │ <Delete> │
│ │ │ ↓ │ │
│ │ └─────────────────────────────────────────────────┘ │
│ │ Mode <Broadcast> │
│ │ Link monitoring <MII (recommended)> │
│ │ Monitoring frequency 100_______ ms │
│ │ Link up delay 0_________ ms │
│ │ Link down delay 0_________ ms │
│ │ Cloned MAC address ________________________________________ │
│ └ │
│ │
│ ╤ IPv4 CONFIGURATION <Manual> <Hide> │
│ │ Addresses 192.168.0.2/24___________ <Remove> │
│ │ <Add...> │
│ │ Gateway _________________________ │
│ │ DNS servers <Add...> │
│ │ Search domains <Add...> │
│ │ │
│ │ Routing (No custom routes) <Edit...> │
│ │ [X] Never use this network for default route │
│ │ [X] Ignore automatically obtained routes │
│ │ [X] Ignore automatically obtained DNS parameters │
│ │ │
│ │ [X] Require IPv4 addressing for this connection │
│ └ │
│ │
│ ═ IPv6 CONFIGURATION <Automatic> <Show> │
│ │
│ [X] Automatically connect │
│ [X] Available to all users │
│ │
│ <Cancel> <OK> │
│ │