Category: General

unknown filesystem type linux_raid_member
When i try mount a HDD, i get error
```
root@super ~ # mount /dev/sda1 /mnt
mount: /mnt: unknown filesystem type 'linux_raid_member'.
root@super ~ # 
```
This is because the disk is part of RAID.

Lets check the disks avaialbe with parted -l

parted shows /dev/sda1 and /dev/sdb1 as raid with same size. So its assemble raid array with command
```
mdadm --assemble --run /dev/md3 /dev/sda1 /dev/sdb1
```
I used /dev/md3 as other device names (/dev/md0, /dev/md1 and /dev/md2) are already in use.

Now you can mount this drive with command
```
mount /dev/md3 /mnt
```
May 12, 2019
anydesk

Install AnyDesk on Ubuntu
Install AnyDesk on Ubuntu using flatpak

May 2, 2019
Check if web site is mobile friendly

To check if web site is mobile friendly, go to web site

https://search.google.com/test/mobile-friendly

April 1, 2019
Using tar over SSH Session
I wanted to make a tar of a folder on a remote server. But the server don’t have much disk space left, so the tar operation failed.

The server had no rsync installed to copy over the folder to another server.

To save generated tar file on another server, i used command
```
tar zcvf - folder-to-compress | ssh root@STORAGE_SERVER_IP "cat > site.tar.gz"
```
Example
```
tar zcvf - public_html | ssh [email protected] "cat > site.tar.gz"
```
NOTE: Make sure you connect to remote server using SSH and accept the key before you run above command as it will fail if you don’t accept key beforehand.

See tar
March 21, 2019
Google Firebase Free Static Hosting
To install firebase cli, run
```
npm install -g firebase-tools
```
To login, run
```
firebase login --no-localhost
```
Static File Hosting

Google Firebase allow statif file hosting for your web sites.

To create a static hosting project, run
```
firebase init
```
To deplay files to hosting, run
```
firebase deploy
```
March 15, 2019
Free stock photos

https://search.creativecommons.org
https://unsplash.com/ – Beautiful Free Images & Pictures
https://www.pexels.com/
https://pixabay.com/
https://freephotos.cc

Free Cliparts

https://openclipart.org/
https://www.svgrepo.com

See Image

March 10, 2019

Install optipng from source

optipng is image optimize for PNG format.

You can download it form

http://optipng.sourceforge.net/

To install, run

cd /usr/local/src
wget https://excellmedia.dl.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.7/optipng-0.7.7.tar.gz
tar xvf optipng-0.7.7.tar.gz
cd optipng-0.7.7
./configure
make
make install

March 3, 2019

rclone

Install rclone on CentOS 6.10

rclone command to serve video from dropbox

rclone mount web:web /www/www/html/ --daemon --allow-other --poll-interval 10s --tpslimit 12 --tpslimit-burst 12 --dir-cache-time 5000h --vfs-cache-mode full --vfs-cache-max-age 150h --vfs-cache-max-size 300G --cache-dir /www/wwwroot/cache --transfers 64 --log-file /var/log/rclone.log --dropbox-batch-mode async --dropbox-batch-size 1000 --dropbox-batch-timeout 10s --checkers 64 --checksum -vv

rclone to serve files using built in web server

rclone serve http --template templatefile web:web --dir-cache-time 5000h --vfs-cache-mode full --vfs-cache-max-age 150h --vfs-cache-max-size 600G --cache-dir /www/wwwroot/cache --log-file /www/wwwroot/rclone.log --no-seek --tpslimit 12 --tpslimit-burst 12

Run on port 8082

rclone serve http box:web --template templatefile --dir-cache-time 5000h --vfs-cache-mode full --vfs-cache-max-age 50h --vfs-cache-max-size 800G --cache-dir /www/wwwroot/cache --log-file /www/wwwroot/web.log --vfs-read-ahead 1G --transfers 48 --checkers 32 --tpslimit 12 --tpslimit-burst 12 --no-seek --read-only --disable-http2 --addr :8082

February 20, 2019

Install rclone on CentOS 6.10
To install rclone on CentOS 6.x, go to

https://rclone.org/downloads/

Download latest version of rpm file.
```
cd /root
wget https://downloads.rclone.org/v1.46/rclone-v1.46-linux-amd64.rpm
rpm -ivh rclone-v1.46-linux-amd64.rpm
```
February 20, 2019
Animation

HTML 5 animation for web sites

https://www.2dimensions.com/

February 18, 2019
Image

Online Photo Editors
Free stock photos
https://extract.pics/ – download images from third party sites.

February 18, 2019
Online Photo Editors
Here are some web-based image editors
- https://www.canva.com/ – i use this for creating youtube thumbnails. Free 5 GB storage. Invite Team.
- https://looka.com/logo-maker/ – this is used to create serverok.in logo.
- https://www.figma.com
- https://pixlr.com/editor/
- https://www.fotor.com/
- https://smartmockups.com/ – free mockups generator.
See Images
February 18, 2019

Category: General

Free Cliparts