Posts tagged sysAdmin
Servers have reputations too
12 Dec 2010
Many have compared the Internet to the wild west. While there may well be cowboys it is certainly true that your server is viewed by the company that it keeps. It seems that people spend a lot of time looking after their own online reputation and very little looking after the reputation of their infrastructure.
A standard part of our SysAdmin service is to setup reputation alerts for your domain names and IP addresses. Last week one of the servers we manage for a client was added to a realtime blacklist (RBL). Blacklists are used to identify places online that are unsafe. This could be spammers, malware or porn. We were convinced that our customer had none of these issues so we contacted the blacklist to find that they had actually blacklisted an entire subnet which included our server. They had noticed a large amount of spam coming from a number of machines around ours and had quite correctly wanted to blacklist them. Our server was “collateral damage”.
Thankfully the blacklist in question removed our server very quickly but it does show that just like real life, all the hard work that goes into keeping your house safe and secure can be tarnished quite easily by having bad neighbours.
Things to remember when setting up infrastructure:
- Your domain name has a reputation as well as your IP address. You should monitor both.
- A good free place to monitor IP addresses is Project Honey Pot.
- A good free place to monitor web domain issues (http only) are Google Webmaster Tools.
- If you are running a mailserver you should monitor realtime blocklists too.
- The ISP that hosts your equipment is responsible for the neighbours you keep.
- Server reputation can also include response time. Ensuring a low latency connection is essential.
Reputation monitoring is an important part of our SysAdmin service. We monitor your equipment so you don’t have to.
Buzzword Bingo
03 Sep 2010
As happens when you are a company registered on social media sites we occasionally get sent invites to advertise on their networks. We’ve always been proud to receive most of our business via referrals and word of mouth but when LinkedIn offers you $100 of free advertising it seems silly to say no. The results turned out to be an interesting window into the words and phrases that are popular at the moment.
When creating adverts online it’s always a good idea to run more than one advert at once, you can then run them for a bit and keep modifying the one that’s doing the worse. After a while you end up with some adverts that are pretty well tuned for the people you want to attract. We didn’t bother modifying any ads this time as it was a short ad run but we did create a number of different ads with slightly different wording.
(Quick side note: When running ads it’s always a good idea to link them to your websites analytics. Not just to separate out the traffic to your site but to link that traffic to actual contacts/sales etc. Surely it’s better to get 100 clicks to your site where 10 become customers than get 10000 clicks and 1 customer. Especially when you are paying by the click!)
To keep things easy we set a maximum spend of $10 per day and ran all of the ads below for 10 days…
| Advert | Clicks | Impressions | CTR |
|---|---|---|---|
 Cloud Computing
Let us show you how to get the most from powerful Amazon AWS services. |
51 | 162168 | 0.031% |
| Electronics & Automation
Integrate your website with the real world. The ideas are endless. |
1 | 10451 | 0.010% |
| VMware
We can help you adopt a Virtualisation solution that is right for you. |
1 | 10552 | 0.009% |
| Amazon AWS
Let us show you how to get the most from powerful Cloud Computing services. |
3 | 40700 | 0.007% |
| SysAdmin
Let us worry about the system administration of your server. |
0 | 12724 | 0.000% |
| Virtualisation
We can help you adopt a VMware solution that is right for you. |
0 | 10403 | 0.000% |
As you can see, the Cloud Computing and Amazon AWS ads are identical with the words swapped. The same is true for the VMware and Virtualisation adverts.
What does all this mean?
The Impression Count is the number of times that LinkedIn users have been show each advert. LinkedIn decide when to show your advert and while you can pay more money to “bid” to a higher position it is linked to the text in the page that LinkedIn is showing to the user. It is therefore safe to say that LinkedIn treat the title of your ad as more important that the text (Ads with the same overall text had very different impression counts).
CTR stands for Click Through Rate, how many and what percentage of the people that saw the ad actually clicked on it. As you can see the numbers are low but at $2 per click the money goes down fast.
Results
Based on all the above we can make the following statements about the popularity of certain buzzwords:
- A lot more people are talking about Cloud Computing than Virtualisation. This was quite surprising to us. While Cloud Computing is the buzzword du jour Virtualisation is the pin that runs it and for the swing to be so unbalanced is slightly unnerving.
- “Cloud Computing” is bigger than “Amazon AWS”. this makes sense, it’s a subset. AWS is just one vendor of cloud computing services.
- “VMware” is more popular than “Virtualisation”. no, wait, what!? A very interesting find. I don’t think anyone would argue that VMware is one of the biggest players in the Virtualisation market but for it to be bigger is interesting.
- Advertising on LinkedIn is expensive! $100 for 56 clicks to our website. Lets just say we are glad it was a free trial and we don’t need to heavily advertise
I realise the sample numbers on this were low. We would love to hear if you have any other statistics to back this up or blow us out the water. Feel free to comment below.