Posix Systems — internet and DNS services provider in Pretoria
Posix Systems is a Pretoria internet business whose speciality is unusual for this directory: secondary DNS, DNSSEC and TSIG, alongside domain, email and web hosting through its VWEB brand and a DNS research observatory. Fibre and fibre-to-the-home services also appear. The company is an ISPA member and upholds its Code of Conduct. Its own site notes it is in the process of rebuilding, so the published detail is thinner than the business behind it.
Key facts
| Who they are | A Pretoria internet services business specialising in DNS infrastructure alongside hosting and connectivity |
| Internet services | Fibre and fibre-to-the-home services, referenced without package detail |
| Also offers | Domain, email and web hosting through the VWEB brand, secondary DNS services, DNSSEC and TSIG information, and DNS research and observatory services |
| Head office | The site gives 370 Erlon Street, Die Wilgers, Pretoria. Posix’s Google profile lists a different address at 90 Kingbolt Crescent, Wapadrand, Pretoria. Confirm which is current before relying on either |
| Coverage | Not published. The company is Pretoria based and the DNS and hosting services are delivered over the internet rather than to a footprint |
| ICASA licence | No ICASA reference is published. The company states ISPA membership and upholds its Code of Conduct, which is industry self-regulation rather than a regulatory licence |
| Pricing | Quote-based. Nothing is published for hosting, DNS or connectivity |
| Site status | The homepage states the site is in the process of rebuilding, with services referenced through links to sister sites. Detail is therefore thinner than the underlying business, so ask directly rather than relying on the pages |
| Listed In | Wireless Internet Providers |
Secondary DNS is a specialist service, not a side line
Almost nothing else in this directory offers secondary DNS, DNSSEC and TSIG, and those are not consumer products. Secondary DNS keeps your domain resolving when your primary nameserver fails, which is the difference between a brief outage and a website that vanishes from the internet. DNSSEC signs your records so they cannot be tampered with in transit. A business running a DNS observatory is doing this seriously rather than ticking a box. That makes Posix an unusual fit: if your requirement is a phone system or an office internet line, the providers in the compare block are the right starting point, but if you run infrastructure and need DNS done properly by someone local, this is a genuinely specialist supplier. Note two things before engaging: the site says it is being rebuilt, and the address on the site differs from the one on the Google profile. Compare connectivity options in the wireless provider directory.
Who Posix Systems is a fit for
- Businesses that need secondary DNS or DNSSEC done properly
- Companies running their own infrastructure who want a local DNS specialist
- Buyers wanting domain, email and web hosting from an ISPA member
How Posix Systems sits in the Wireless category
- 204 verified fixed wireless internet providers on WhichVoIP; 146 carry a Google rating.
- No published Google rating for Posix Systems (146 of 204 in the category have one; median 41 reviews).
Computed from the WhichVoIP provider register; refreshes as ratings and reviews change.
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Be specific about the infrastructure requirement, since that is where this supplier is strongest. Say whether you need secondary DNS, DNSSEC signing or hosting, how many domains and zones are involved, and confirm which of the two published addresses is current.
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Compare fixed wireless internet providers →Commonly asked questions
What is secondary DNS and why would I need it?
It is a backup nameserver that keeps your domain resolving if your primary fails. Without it, a nameserver outage can take your website and email off the internet entirely rather than merely slowing them down.
What is DNSSEC?
It cryptographically signs your DNS records so they cannot be tampered with between the nameserver and the user. It matters for any business where a hijacked domain would be a serious event, such as financial services or e-commerce.
Which address is correct?
The site gives 370 Erlon Street, Die Wilgers, Pretoria, while the Google profile lists 90 Kingbolt Crescent, Wapadrand. WhichVoIP states both rather than picking one. Confirm which is current when you make contact.
Is Posix an ISPA member?
Yes. The site states it is a proud member of ISPA and upholds the Code of Conduct, which provides an independent complaints process. No ICASA licence reference is published.
Why is the website so thin?
The homepage states the site is in the process of rebuilding, with services referenced through links to sister sites including VWEB. The published detail is therefore thinner than the underlying business, so ask directly.
Does Posix supply business phone systems?
No voice product is published. The speciality is DNS, hosting and connectivity. If you need telephony, compare the providers listed elsewhere in this directory.
This listing is maintained by WhichVoIP, an independent South African telecoms comparison service running since 2019. Details are verified against the provider’s public website and were last reviewed on 29 July 2026.