Category: Network & Server (網絡及服務器)

Symantec Endpoint Protection (SEP) failed to load new virus definition

By admin, April 3, 2021 11:41

Seems the old Windows Server 2003 is having trouble with recent SEP v12.1 virus definition updates.

Solution is simple by restarting the SEP service.

smc -stop
smc -start

Then manually update the definition will solve all the question marks.

Interesting! Windows Server 2019 working on ESX 4.1!

By admin, April 2, 2021 21:51

w2k19

As expected, the installation process is almost identical to Windows Server 2012 and 2016. The key is to use BIOS version SLIC 2.5.

Except I’ve encountered a tricky problem that the valid license key won’t activate, it returns with “windows server 2019 error -xc004f069″.

It turns out the the source ISO is an evaluation copy, so all you have to do is to convert the Eval copy to Retail version by:

DISM /Online /Set-Edition:ServerStandard /ProductKey:xxxxx-xxxxx-xxxxx-xxxxx-xxxxx /AcceptEula

To determine upgrade path and other available edition:
DISM /online /Get-TargetEditions

For the evaluation/retail version of Windows Server 2016 Standard, you can also convert to the retail version of Windows Server 2016 Data Center using the same command and the appropriate product key.

DISM /Online /Set-Edition:ServerDatacenter /ProductKey:xxxxx-xxxxx-xxxxx-xxxxx-xxxxx /AcceptEula

Update: Apr 11, 2021

It turns out VM will lost its customized CPUID parameter after Veeam backup restoration, BIOS SLIC 2.5 parameter holds though.

So you have to add it back again, or the VM will keep crashing every now and then.

However, if the VM is deployed via template, then there is no problem at all.

Finally Disk Cleanup is here for Windows Server 2008 R2

By admin, December 3, 2020 14:02

System drive is filling up with all the unncessary hotfix files and cannot be removed? Finally the most important piece of system cleanup tools shows up in Windows Server 2008 R2

All you need to do is to copy the following two files into corresponding locations!

Cleanmgr.exe should go in %systemroot%\System32.

Cleanmgr.exe.mui should go in %systemroot%\System32\en-US.

You can now launch the Disk cleanup tool by running Cleanmgr.exe from the command prompt.

Remote Desktop Option Grey Out Problem

By admin, March 12, 2020 13:36

Today, I found one of the windows 7 got hacked and “Allow connections from computers running any version of remote desktop” option was grey out.

Solution is to reset the policy:
1. gpedit.msc
2. Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host, under Connections ENABLE Allow users to connect remotely by using Remote Desktop Services, then set it to Not Configured

All 3 remote desktop options are back to normal again.

Simple VPN Upgrade to L2TP IPSec

By admin, May 28, 2019 11:42

It turns out my new iPad removed PPTP since iOS10 due to outdated and unsecured protocol of PPTP, and there is no 3rd party app for PPTP VPN clients for iOS12.

So the only solution without jailbreak is to upgrading my old VPN gateway (running on Windows Server 2003) from PPTP to L2TP IPSec.

Simply select “Allow custom IPSec policy for L2TP connection” and type in a Pre-shared Key in the RRAS property.

On the VPN client side, all you need to do is to select L2TP and type in the Pre-shared Key under Security tab.

Simple as that!

l2tp

Play MKV, MP4, FLAC, APE on IPad/iPhone

By admin, April 10, 2019 11:43

VLC Media Player App is so good!

Simply use iTune’s File Sharing and drag your media to VLC.

All your MKV, MP4, FLAC, APE, MP3…can be played on iPad/iPhone now and no more conversion required, nice and easy!

Btw, Apple support really SUCKS! It’s just completely waste of my time. Google is your best friend as always

用咗13年嘅Dell Notebook終於可以退役

By admin, April 3, 2019 13:44

IMG_6358

Reset CentOS 7 root Password

By admin, April 30, 2018 13:14

1. Menu press “e”
2. Find the line “linux16 vmlinuz…: at the end add “init=/bin/sh”, then Ctrl + x
3. mount -o remount,rw /
4. passwd root
5. touch /.autorelabel
6. exec /sbin/init (You will need to WAIT for a few minutes)

曾經是最強主機板,現在變成了古董收藏

By admin, December 3, 2017 10:17

Tyan S2688 E-ATX, PIII-S 1.4Ghz, 3GB ECC+REG RAM, PIC-X, LSI MEGARAID 320-2 SCSI

IMG_7974

No GUI and SSH login on console, only [sda] Assuming drive cache: write through

By admin, October 11, 2017 13:05

Today I found out one of the CentOS 7-1611 VMs has no GUI available and also there is no SSH login at the console.

Worst the screen indicates “[sda] Assuming drive cache: write through”, seems it’s hang at startup.

In fact it’s working fine, then I SSH into the server remotely, and issue “systemctl set-default multi-user.target” which set the default login interface to be text based SSH login, the SSH login screen appears after the reboot.

systemctl isolate multi-user.target to return to command mode
systemctl isolate graphical.target  to return to graphical mode

Somehow, systemctl isolate graphical.target turns the screen into blank, still have no idea what’s causing this, nor startx works.

Finally, the vCenter VM Guest OS status changed from CentOS 4/5 64 bits to Other (32-bit) automatically everything after reboot, anyone knows why? Pls drop me a line, thx.

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