Архив автора
Sangoma Linux after migration from VMWare ESXi to ProxmoxVE fails to boot
написано 13 марта, 2024 - запись из раздела CentOS Linux, KVM, Proxmox VE, virtualization, VoIP | Комментировать
After migration Sangoma Linux (FreePBX on CentOS7) from vmware to proxmox qm importovf 7804 PBX002.ovf local-zfs OS fails to boot with error: Could not boot /dev/SangomaVG/root does not exist /dev/SangomaVG/swaplv1 does not exist /dev/mapper/SangomaVG-root does not exist What do we need? 1. add network adapter, chose model «VMware vmxnet3» and set previously used MAC-address 2. […]
FreeIPA WebUI login fails
написано 18 января, 2024 - запись из раздела Linux | Комментировать
runing ‘kinit’ in console gives an error like: Received error from KDC: -1765328382/Server’s entry in database has expired kinit: Server’s entry in database has expired while getting initial credentials enter to console admin kadmin.local kadmin.local: getprinc krbtgt/DOMAIN.COM You may see that expiration date passed Expiration date: Tue Dec 31 23:59:59 MSK 2023 Set a new […]
HP Proliant Gen9 G9 DMAR error
написано 23 ноября, 2023 - запись из раздела Hardware, Linux | Комментировать
If you getting an error like this in dmesg on your linux and the physical server is a kind of HP Proliant G9 (Gen9) DMAR: [DMA Write NO_PASID] Request device [04:00.0] fault addr 0x791f4000 [fault reason 0x05] PTE Write access is not set DMAR: DRHD: handling fault status reg 402 You can just ignore it […]
Mikrotik FAN speed on CCR2004-1G-12S+2XS
написано 13 ноября, 2023 - запись из раздела Mikrotik | Комментировать
By default settings system health on mikrotik CCR2004 shows 0 RPM fan speed. In my case the temperature of CPU was about to 60C but there is no direct settings to set FAN speed, so i set the temp to run fullspeed this way /system health settings set fan-full-speed-temp=45C fan-target-temp=45C
Dell iDrac FAN speed adjustment
написано 23 октября, 2023 - запись из раздела Несортированное | Комментировать
You can do it by setting fan speed offset in BIOS, but if you don’t want to reboot your system you can do it using ipmitool enable manual Fan speed setting ipmitool raw 0x30 0x30 0x01 0x00 Then set fan speed to 100% ipmitool raw 0x30 0x30 0x02 0xff 0x64
FreeIPA allow queries from other networks
написано 11 сентября, 2023 - запись из раздела Linux | Комментировать
Add to /etc/named/ipa-ext.conf acl "trusted_network" { localnets; localhost; 10.222.0.0/23; 195.222.111.0/24; }; Where 10.222.0.0/23 and 195.222.111.0/24 not direct attached networks Add to /etc/named/ipa-options-ext.conf allow-recursion { trusted_network; }; and restart freeipa ipactl restart
zfs arc size
написано 18 апреля, 2023 - запись из раздела Linux | Комментировать
To set zfs_arc_max as 1/4 of RAM (by default it’s 1/2) you can use that script #!/bin/bash arc_size=`free | awk ‘NR ==2 { OFMT="%.0f"; print $2/4*1024}’` echo "$arc_size" > /sys/module/zfs/parameters/zfs_arc_max echo 3 > /proc/sys/vm/drop_caches echo "options zfs zfs_arc_min=0" > /etc/modprobe.d/zfs.conf echo "options zfs zfs_arc_max=$arc_size" >> /etc/modprobe.d/zfs.conf update-initramfs -u -k all To […]
Maipu S3100-9TP enable ssh
написано 27 марта, 2023 - запись из раздела Несортированное | Комментировать
By default ssh is disabled, connect to switch using telnet an run that commands: Switch#crypto key generate rsa Switch#crypto key refresh Switch#conf t Switch(config)#ssh Switch(config)#end Switch#write running-config startup-config
OpenVPN error — ca md too weak
написано 22 марта, 2023 - запись из раздела Linux desktop, Ubuntu | Комментировать
When you get an error like this: OpenSSL: error:0A00018E:SSL routines::ca md too weak Beter solution is to regenerate a new CA with stronger encryption, if you cant do that, add to your config file located in /etc/NetworkManager/system-connections/ which looks like work-c65734b1-83a7-45d9-ac69-2e41fc6cd123.nmconnection in section [vpn] this line: tls-cipher=DEFAULT:@SECLEVEL=0 Reload the configuration with the command: nmcli connection […]
k9s and microk8s
написано 20 февраля, 2023 - запись из раздела k8s | Комментировать
microk8s.kubectl config view —raw > ~/.kube/config wget -qO- https://github.com/derailed/k9s/releases/download/v0.32.3/k9s_Linux_amd64.tar.gz | tar zxf — k9s mv k9s /usr/local/bin/