There isn’t a clear way to uninstall the Synology Cloud Station client on Ubuntu from the GUI. The only ways seems to be from the command line and it took me a while to find it.
Cloud Station is installed in your home directory in a hidden folder called ./Cloudstation. There is an uninstall script buried in a few folders down.
Open a terminal and run:
./CloudStation/CloudStation-app/package/uninstall
Job done.
I hope this helps someone.
I host a couple of WordPress sites on Ubuntu hosted on Digital Ocean droplets. I use their standard WordPress application (pre built WordPress on Ubuntu) with the smallest size Droplet possible. It has just 512MB Ram and 20GB SSD Disk and 1 logical core – i.e. it isn’t very quick.
Anyhow, I started to have a few problems with MySQL crash. I manifested itself by WordPress complaining that it could not connect to the database. I could fix the problem by restarting MySQL – ‘sudo service mysql restart’.
The longterm fix is to give MySQL more memory but I didn’t really want to do that. So, I opted to provide the server with more swap space. Given that Digital Ocean server are SSD’s this would be quite quick.
https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04
Here is how you add swap to an Ubuntu server:
1 – Check you what swap you have.
sudo swapon -s
If you get blank response then you don’t have any swap. Digital Ocean doesn’t seem to provide swap by default.
2 – Check how much disk space you have.
df -h
Filesystem Size Used Avail Use% Mounted on udev 234M 0 234M 0% /dev tmpfs 49M 528K 49M 2% /run /dev/vda1 20G 2.3G 17G 12% / tmpfs 245M 0 245M 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 245M 0 245M 0% /sys/fs/cgroup tmpfs 49M 0 49M 0% /run/user/1000
I had 17G and so could easily give the server 1g swap.
3 – Use fallocate to reserve space on the file system. Fallocate is used because it doesn’t bother to write anything to the file system. It just allocates the space on the disk.
sudo fallocate -l 4G /swapfile
4 – Set file permissions
sudo chmod 600 /swapfile
5 – Convert it to a swap file
sudo mkswap /swapfile
6 – Add the swap
sudo swapon /swapfile
7 – Check that the swap is there
sudo swapon -s
8 – Add it to the fstab
so that it is mounted when the server reboots
sudo nano /etc/fstab
and put this line at the bottom:
/swapfile none swap sw 0 0
Finally, you can check it has all worked…
sudo swapon -s
Filename Type Size Used Priority /swapfile file 1194300 103160 -1
I am just installing Nagios on a Digital Ocean Droplet and wanted to know what specification server to purchase. According to the Nagios website the minimum requirements for Nagios are:
| Monitored Nodes | Hard Drive Space | CPU Cores | RAM |
|---|---|---|---|
| 50 – 250 | 40 GB | 1 – 2 | 1 – 4 GB |
| 100 – 500 | 80 GB | 2 – 4 | 4 – 8 GB |
