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Archive for the 'Linux' Category

30 Dub

HowTo: Uninstalling Windows Defender with PowerShell

Uninstall-WindowsFeature -Name Windows-Defender

20 Led

Error installing VMware Remote Console plugin – (k)ubuntu 18.04

Quick Fix # apt-get install desktop-file-utils

17 Led

„The Ext Drive has been disabled due to a detected fault“ Lenovo SR570 & Lenovo DE4000H

1. Power off (all) servers 2. Change the volume LUN ID to ID 0 on DE4000H 3. Power on (all) servers

05 Říj

UBNT UniFi AP (UAP) Upgrade Loop

1. Forgot device from UniFi 2. SSH to UniFi AP (default credential ubnt/ubnt) ssh root@ip_of_unifi_ap 3. Upload latest firmware image from UniFi web site (https://www.ui.com/download/unifi/unifi-ap) cd /tmp wget https://dl.ubnt.com/unifi/firmware/BZ2/4.0.15.9872/BZ.ar7240.v4.0.15.9872.181229.0259.bin –no-check-certificate mv BZ.ar7240.v4.0.15.9872.181229.0259.bin fwupdate.bin 4. Run upgrade process syswrapper.sh upgrade2 & 5. Wait a moment & adopt device in controller

05 Říj

DNSSEC in BIND & Fast validation

Edit Bind config file vi /etc/bind/named.conf.options … options { … dnssec-enable yes; dnssec-validation auto; … }; …

24 Zář

Error „Hardware RAID is disabled via NVRAM Controller setting“

# Show controller slots ssacli ctrl all show config # Disable HBA Mode ssacli controller slot=0 modify hbamode=off # Recheck controller status ssacli controller slot=0 show

21 Zář

Sync time on Windows 2019 server

# Set NTP servers w32TM /config /syncfromflags:manual /manualpeerlist:pool.ntp.org /update # Restart the time service net stop w32time && net start w32time # Resync the time w32tm /resync # Verify status w32tm /query /status

21 Zář

Failed to establish secure connection: sslv3 alert handshake failure: 1040

Debian 10 (Buster) + latest NSClient++ on Windows 2019 server Linux: root@nagios:/# /usr/lib/nagios/plugins/check_nrpe -H 172.24.1.1 -c check_ad CHECK_NRPE: (ssl_err != 5) Error – Could not complete SSL handshake with 172.24.1.1: 1 Windows: 2019-09-21 18:30:46: error:c:\source\master\include\socket/connection.hpp:273: Seems we other end is not using ssl: unknown protocol 2019-09-21 18:30:46: error:c:\source\master\include\socket/connection.hpp:274: Please review the ssl option as well […]

18 Zář

Convert Windows Server 2019 Eval to Server Standard

DISM /online /Get-CurrentEdition DISM /online /Get-TargetEditions DISM /online /Set-Edition:ServerStandard /ProductKey:N69G4-B89J2-4G8F4-WWYCC-J464C /AcceptEULA slmgr.vbs /upk slmgr.vbs /ipk your_mak_key slmgr.vbs /ato Official KMS client keys https://docs.microsoft.com/en-us/windows-server/get-started/kmsclientkeys

14 Čvc

Jak dešifrovat heslo z Remminy

…aneb když zapomenete přihlašovací údaje. Hesla v remmině jsou zašifrována pomocí blokové šifry 3DES s 256bitovým (náhodně vygenerovaným) klíčem. Klíč lze nalézt (Kubuntu 18.04) v souboru ~/.config/remmina/remmina.pref (na řádce začínající slovem „secret=“). Jednotlivá zašifrovaná hesla pak jsou v souborech ~/.local/share/remmina/*.remmina (řádek začínající klíčovým slovem „password=“). K dešifrování poslouží tento krátký skript v Pythonu (nahraďte položky […]

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