how to change my server IPs with no downtime?

Hi,

I have a redhat linux server+cpanel hosting about 80 accounts on the same ip as the main shared IP.

the nameservers are:
ns1.xxxx.com xxx.xxx.xxx.111 (main shared ip)
ns2.xxxx.com xxx.xxx.xxx.112

Unfortunately, these IPs are listed in SPEWS and some other spam blocking systems.

I requested 5 clean IPs from my ISP & I am willing to change those blocked IPs by new ones. Is it possible to change the IPs with no/less downtime? if yes, how?

Also, is it possible to assign one unique ip as the main shared IP and another two ips for nameservers?

Thanks

 

 

 

 

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