VOS3000 Installation, VOS3000 Server, VOS3000 SoftSwitch, VOS3000Switch, VOS3000, VOS3000 Pricem VOS3000 Web, VOS3000 API, VOS3000 Rent, VOS3000 Manual, VOS3000 Downloads, VOS3000 VoIP, VOS3000 Carrier Switch, VOS3000, VOS3000 Login, Mobile Apps for VOS3000, VOS3000 Mobile Apps, Mobile Apps
Hello,
Due to security issue many people need to change ssh default ports. Non only for voip hacking issues, there are lots of spammer scan linux server ssh ports, so its good if you keep it changed to different ports. So i am sharing how you can change it easily.
Login to your vos3000 server at centos:
I am giving command serially:
# vi /etc/ssh/sshd_config
Or
# nano /etc/ssh/sshd_config
Some people like default editor “vi” is by default work for all linux. Some people like “nano” editor, so both command i shared earlier. Now you will see below image at your vos3000 server
Here you can see default vos3000 server port is 22. You just simply write “port” and space then your desired ports. In image you can see we used ports 34627. Then save it by using default commands of your editor. For “vi” command to write anything you need to press “i” then you can change anything and then “Esc” to complete and save command is :q!” and enter.
For nano simply you can change and after change you can save by “cntrl+x” and then “y” and enter.
After that for Centos 5.x and Centos 6.x server you need to use below command for restart the ssh service.
# service sshd restart
And for Centos 7.x server command is:
# systemctl restart ssh
VOS3000 2.1.1.5, 2.1.2.0, 2.1.2.4 mostly works in centos 5.x . VOS3000 2.1.2.4 can works in centos 6.x also but emp will not work properly and voice issue will be there. Newer VOS3000 2.1.4.0 or VOS3000 2.1.6.0 works in centos 6.x newer versions also. For compatibility of VOS3000 installation in linux server and which centos required for which version you can see my other post where i mentioned kernel version where emp matched easily. Also you can downgrade or upgrade kernel easily. Will post later about this. Keep tuned in our blog for it.
We also recommend ssh blocking by ip authentication based firewall. So it will be more secured for vos3000 server hacking which is common now a days.
Thanks again, please knock us in whatsapp: +8801911119966 for any kind vos3000 related troubleshoot.
visit for more: https://www.vos3000.com
Essential VOS3000 high CPU usage optimization guide. Diagnose CPU spikes with top htop, fix SIP flood attacks, MySQL query optimization,… Read More
Complete VOS3000 database recovery MySQL corruption fix guide. Repair InnoDB corruption, restore from mysqldump, use mysqlcheck, innodb_force_recovery, prevent data loss… Read More
Proven VOS3000 call drop disconnect troubleshooting guide. Fix RTP timeout, SIP session timer expiry, firewall UDP timeout, NAT keepalive, failover… Read More
This website uses cookies.
View Comments