How to Increase the ISO Upload Limit in SynetoOS 6

Written By Christian Castagna (Super Administrator)

Updated at April 22nd, 2026

→ Applies to: SynetoOS 6.x

Step 1. Connect to SynetoOS appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

Step 2. Get root privileges

sudo su -

Step 3. Set client_max_body_size to 15000M

sed -i 's/client_max_body_size\s\+[^;]*;/client_max_body_size 15000M;/g' /etc/nginx/conf.d/syneto-ssl.conf

Step 4. Set fastcgi_read_timeout to 120

sed -i 's/fastcgi_read_timeout\s\+[^;]*;/fastcgi_read_timeout 120;/g' /etc/nginx/conf.d/syneto-ssl.conf

Step 5. Restart ngnix service

systemctl restart nginx.service

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