HPE Ethernet 1Gb 4-port 331i Adapter Gen9
Запись создана 30 июля, 2026
HPE Broadcom NX1 Online Firmware Upgrade Utility Linux x86_64 for ProLiant Gen9 server Only
This software package contains combo image v20.19.51
rpm2cpio firmware-nic-broadcom-2.29.0-1.1.x86_64.rpm | cpio -idmv cd ./usr/lib/x86_64-linux-gnu/firmware-nic-broadcom-2.29.0-1.1 ./hpsetup Copyright (c) 2021 Hewlett Packard Enterprise Development LP HPE Broadcom NX1 Online Firmware Upgrade Utility for Linux x86_64 - v2.29.0 Found HPE Ethernet 1Gb 4-port 331i Adapter MAC: 3863BB40B7A0 Do you want to update the following firmware on eno1 : nvm 20.18.31 to 20.19.51 - y/n/q (Default option is 'y' when you simply press enter):y The Firmware Upgrade may take several minutes. Please be patient. Selecting HPE Ethernet 1Gb 4-port 331i Adapter MAC: 3863BB40B7A0 Updating the following firmware on eno1 : nvm 20.18.31 to 20.19.51 Firmware (nvm) upgrade on MAC 3863BB40B7A0 SUCCESSFUL NIC firmware update completed successfully. Reboot is required for the new firmware to take effect.
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HPE 530FLR-SFP+ firmware
Запись создана 30 июля, 2026
the latest one available on official website is combo image 7.14.79
Version 2.18.44 support.hpe.com
Release Date Oct 24, 2016, over the 10 years without an update..
Is you have a vmware you can use CP029553.zip to upgrade to the combo image v7.14.81
https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw/p1955087049/v117588/CP029553.zip
apt install rpm2cpio rpm2cpio hp-firmware-nic-qlogic-nx2-2.18.44-1.1.x86_64.rpm | cpio -idmv cd ./usr/lib/x86_64-linux-gnu/hp-firmware-nic-qlogic-nx2-2.18.44-1.1 ./hpsetup
Copyright (c) 2016 Hewlett Packard Enterprise Development LP HPE QLogic NX2 Online Firmware Upgrade Utility for Linux x86_64 - v2.18.44 Found HP Ethernet 10Gb 2-port 530FLR-SFP+ Adapter MAC: ECB1D77B0DE8 Do you want to update the following firmware on eno49 : MBI 7.10.5 to 7.14.79 - y/n/q (Default option is 'y' when you simply press enter):y The Firmware Upgrade may take several minutes. Please be patient. Selecting HP Ethernet 10Gb 2-port 530FLR-SFP+ Adapter MAC: ECB1D77B0DE8 Updating the following firmware on eno49 : MBI 7.10.5 to 7.14.79 Firmware (MBI) upgrade on MAC ECB1D77B0DE8 SUCCESSFUL NIC firmware update completed successfully. Reboot is required for the new firmware to take effect.
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zfs transfer between servers
Запись создана 21 ноября, 2025
zfs snapshot rpool/data/vm-119-disk-0@migration
zfs send -Rpv rpool/data/vm-119-disk-0@migration | ssh -o BatchMode=yes root@pve-n10 zfs recv -Fv rpool/data/vm-119-disk-0
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nf_conntrack limit
Запись создана 24 октября, 2025
cat /proc/sys/net/netfilter/nf_conntrack_max cat /proc/sys/net/netfilter/nf_conntrack_count echo "net.netfilter.nf_conntrack_max=16384" > /etc/sysctl.d/10-conntrack-max.conf
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Smart HBA H240 firmware update under Debian
Запись создана 3 июля, 2025
curl -fL -o "firmware-smartarray-ea3138d8e8-7.20-1.1.x86_64.rpm" https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-array/p773315150/v176861/rpm/RPMS/x86_64/ firmware-smartarray-ea3138d8e8-7.20-1.1.x86_64.rpm apt install rpm2cpio rpm2cpio firmware-smartarray-ea3138d8e8-7.20-1.1.x86_64.rpm | cpio -idmv ./usr/lib/x86_64-linux-gnu/firmware-smartarray-ea3138d8e8-7.20-1.1/setup Supplemental Update / Online ROM Flash Component for Linux (x64) - Smart Array and Smart HBA H240ar, H240nr, H240, H241, H244br, P240nr, P244br, P246br, P440ar, P440, P441, P542D, P741m, P840, P840ar, and P841 (7.20), searching... 1) Smart HBA H240 in Slot 1 (7.00) Select which devices to flash [#,#-#,(A)ll,(N)one]> 1 Flashing Smart HBA H240 in Slot 1 [ 7.00 -> 7.20 ] Deferred flashes will be performed on next system reboot ============ Summary ============ Smart Component Finished Summary Messages ================ Reboot needed to activate 1 new FW image Exit Status: 1 Deferred flashes will be performed on next system reboot A reboot is required to complete update.
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Windows Server 2019 2022 samba share access
Запись создана 20 июня, 2025
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters] DWORD AllowInsecureGuestAuth 1
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отключаем раздел восстановления Windows Server 2022
Запись создана 20 июня, 2025
reagentc /disableудаляем раздел
diskpart list volume select volume 4 delete partition override exit
Включаем восстановление на системный диск
reagentc /setreimage /path C:\windows\system32\recovery reagentc /enable
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RTSP web translation server
Запись создана 12 марта, 2025
Put this in to docker-compose.yml
--- services: restreamer: image: datarhei/restreamer:latest container_name: restreamer restart: always ports: - 80:8080 - 8181:8181 - 1935:1935 - 1936:1936 - 6000:6000/udp volumes: - /opt/restreamer/config:/core/config - /opt/restreamer/data:/core/data
and run
docker compose up -d» Запись из раздела Несортированное | Комментировать
microk8s disk consumption
Запись создана 12 февраля, 2025
24G /var/snap/microk8s/common/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots
add this strings to /var/snap/microk8s/current/args/kubelet
--image-gc-high-threshold=50 --image-gc-low-threshold=40 --maximum-dead-containers=0
and restart
snap restart microk8s
and you will see
9.1G /var/snap/microk8s/common/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots
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OpenVPN: Real Speedup [DCO]
Запись создана 30 января, 2025
We have a test bench of two servers, connected with physical 10G ports
Let’s see what iperf3 will show
[ 5] 0.00-1.00 sec 1.08 GBytes 9.29 Gbits/sec [ 5] 1.00-2.00 sec 1.08 GBytes 9.30 Gbits/sec [ 5] 2.00-3.00 sec 1.08 GBytes 9.29 Gbits/sec
Now let’s put OpenVPN between those two and repeat iperf3
[ 5] 0.00-1.00 sec 82.0 MBytes 687 Mbits/sec [ 5] 1.00-2.00 sec 94.0 MBytes 789 Mbits/sec [ 5] 2.00-3.00 sec 96.4 MBytes 808 Mbits/sec
now, let’s enable DCO and check the speed again
[ 5] 0.00-1.00 sec 206 MBytes 1.73 Gbits/sec [ 5] 1.00-2.00 sec 227 MBytes 1.90 Gbits/sec [ 5] 2.00-3.00 sec 213 MBytes 1.79 Gbits/sec [ 5] 3.00-4.00 sec 159 MBytes 1.33 Gbits/sec [ 5] 4.00-5.00 sec 160 MBytes 1.35 Gbits/sec
What a magic! What else we can do? if it’s an virtual environment — enable AES+ option to CPU and check again
[ 5] 0.00-1.00 sec 227 MBytes 1.90 Gbits/sec [ 5] 1.00-2.00 sec 238 MBytes 2.00 Gbits/sec [ 5] 2.00-3.00 sec 234 MBytes 1.96 Gbits/sec [ 5] 3.00-4.00 sec 233 MBytes 1.95 Gbits/sec
Now is a question you have is «HOW?» let me show you a few steps and my config files!
On both side server/client
apt install openvpn-dco-dkms echo 'ovpn-dco-v2' >> /etc/modules-load.d/modules.conf
/etc/openvpn/client/test.conf
client remote test1.srv.in 1194 dev tun proto udp persist-key persist-tun tls-client script-security 2 cipher AES-256-GCM auth SHA256 data-ciphers AES-256-GCM auth-nocache remote-cert-tls server
/etc/openvpn/server/server.conf
proto udp port 1194 dev tun ifconfig 172.16.45.1 255.255.255.0 server 172.16.45.0 255.255.255.0 push "route-metric 100" keepalive 3 10 user nobody group nogroup persist-key persist-tun status server-openvpn-status.log log server-openvpn.log verb 2 client-to-client client-config-dir /etc/openvpn/ccd topology subnet cipher AES-256-GCM auth SHA256 data-ciphers AES-256-GCM fast-io sndbuf 393216 rcvbuf 393216 push "sndbuf 393216" push "rcvbuf 393216" txqueuelen 4000 tun-mtu 1420
DCO has a several limitations, you can read about it here https://docs.netgate.com/pfsense/en/latest/vpn/openvpn/dco.html
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