Blocked IP’s creating a problem?
NZservers has a solution for you where we can whitelist your dynamic IP address
We introduced blocking IP’s to protect the server from hackers and spammers.
We are not so worried about your own IP address provided we know what the IP address is.
As most IP addresses are assigned dynamically we simply don’t know what your IP is.
If you accidentally trigger an IP block we have to unblock the IP address.
We do offer a service to whitelist your dynamic IP address.
We do this through a product called noip.com.
We have no financial interest with noip.com.
The most common blocks are listed below.
SMTP – Simple Mail Transport Protocol
The server sends email through the SMTP server
Our servers require the correct authentication values to be passed to the SMTP server.
A failure to pass the correct authentication details can block the IP address.
This is the most common type of IP block with emails.
This is a sample from our server logs to give you some idea of what we deal with:-
Approx 1 or more attacks per minute.
Jun 22 20:47:03 sv5 lfd[2788713]: (smtpauth) Failed SMTP AUTH login from xxxxxx (KR/South Korea/-): 5 in the last 3600 secs - *Blocked in csf* [LF_SMTPAUTH] Jun 22 20:50:28 sv5 lfd[2790949]: (smtpauth) Failed SMTP AUTH login from xxxxxxx (VN/Vietnam/-): 5 in the last 3600 secs - *Blocked in csf* [LF_SMTPAUTH] Jun 22 21:01:19 sv5 lfd[2794447]: (smtpauth) Failed SMTP AUTH login from xxxxxxx (NL/Netherlands/-): 5 in the last 3600 secs - *Blocked in csf* [LF_SMTPAUTH]
If you use webmail you need to enter the correct email address and password.
If for any reason the login fails please stop trying to login after the 3rd attempt otherwise you will end up blocking your IP address.
The correct username and password is required.
If the login does not work please stop trying to login after the 3rd attempt.
Emails are not designed for synchronous communications.
Using SKYPE or a phone is a better method.
If you login more than 60 times per hour your IP will be blocked.
Static IP
If you have a static IP you do not need a dynamic host like noip.com.
We can set this for free if you email the static IP address or fill in the form option below.
A lot if Fibre Optic connections have a static IP.
If you are not sure contact your ISP provider (ISP – the firm you connect to the internet with)
If they say you have a static IP ask what the static IP is.
If you are not sure click on this link http://whatsmyip.org which will give you your IP address.
Please not this only applies to devices connected to your WIFI.
If you have a cellphone this is not always connected to your WIFI.
Most cellphone connections use a dynamic IP address when connecting through a cellphone tower.
With the NOIP plan you run an app on your cellphone which will white list your cellphone IP
Static IP addresses can be expensive.
With No-IP you can allocate up to 25 hostnames for a cost of approx $USD 24.
Assuming a $NZD cost of 37.00 per year that works out at 71 cents per week for one person.
If you have 10 people that works out at less than 7cents per week per person.
This allows you to whitelist up to 25 people working from different locations.
With more people working from home after COVID-19 for peace of mind you need to keep your IP unblocked.
Unblocking IP addresses is time-consuming for us and for you.
For your own peace of mind please consider this.
- Create a Paid or Free account at noip.com
- Once you have a host name please send this to nzservers using the form below
- There is a small cost involved of $55.00 excl of GST to set this up on the server.
The $55.00 excl of GST is the cost NZServers charges for setting this up on our server.
(this is a one-time cost)
Once you create a hostname you download the Dynamic Update Client.
You have to do this as you need to create the A/C at NOIP. If you go for the paid version of NOIP this will require your credit which is something we can not do as we do not hold credit cards on our website.
It is possible depending on your router to add the hostname directly.
There are instructions on NOIP on how to do this which depends on your router make and model.
Additional Hosts
If your business has multiple locations this is where a paid version allows you generate additional hosts.
You can also download NOIP apps for your Android or iPhone/Ipad which will keep your IP on these devices whitelisted.
I use the NOIP add on several computer devices as I can’t afford the risk of being locked out of the server.
