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  • Manage and analyse device logs for rapid fault finding and repair
    idn php pear php5 imagick php5 imap php5 json php5 mcrypt php5 memcache php5 mhash php5 ming php5 mysql php5 ps php5 pspell php5 recode php5 snmp php5 sqlite php5 tidy php5 xmlrpc php5 xsl Please note When you install dependencies the system will ask you to enter a password for MySQL Enter the credentials you wish to use It might prompt you again and ask if you want to configure database now Click yes and it will configure the database automatically It will ask you to enter a username and password you can set this as you like but for the rest of this post we shall assume that the admin username for mysql is root 2 Setup rsyslog Note The following instructions demonstrate how we recommend setting up syslog to receive logs from other devices and push that data to a MySQL database and how to configure logrotation More information and additional configuration options can be found at www rsyslog com Edit syslog to receive logs Vi etc rsyslog conf provides UDP syslog reception ModLoad imudp UDPServerRun 514 ActionQueueType LinkedList ActionQueueFileName fileforward WorkDirectory rsyslog work default location for work spool files ActionQueueType LinkedList use asynchronous processing ActionQueueFileName srvrfwd set file name also enables disk mode ActionResumeRetryCount 1 infinite retries on insert failure ActionQueueSaveOnShutdown on save in memory data if rsyslog shuts down provides TCP syslog reception ModLoad imtcp InputTCPServerRun 514 ActionQueueType LinkedList ActionQueueFileName fileforward ActionResumeRetryCount 1 infinite ActionQueueSaveOnShutdown on Make syslog file readable to website Chmod 644 var log syslog Edit logrotate to make sure this continues Vi etc logrotate conf Modify create line to create 644 root Edit logrotate to keep logs forever vi etc logrotate d rsyslog remove the line rotate 7 Note By default logrotate will keep logs for 7 days before deleting them For log analysis purposes it s advisable to keep logs for a longer period of time To do this you can change the number in the line above to a higher value or delete the line altogether to keep logs forever Storage space limitations can be mitigated by removing old logs from the database by the retention schedule and storing them in file format Logs in file format take up significantly less space than those in the database You still need to keep an eye on disk space to make sure you don t run out however File syslog is now ready to receive results 3 Make rsyslog log to MySQL Edit syslog to log to MySQL Vi etc rsyslog conf Add these lines ModLoad ommysql ommysql 127 0 0 1 Syslog rsyslog enterpassword Use your own password in place of enterpassword Create DB in MySQL Mysql u root p CREATE DATABASE Syslog USE Syslog CREATE TABLE SystemEvents ID int unsigned not null auto increment primary key CustomerID bigint ReceivedAt datetime NULL DeviceReportedTime datetime NULL Facility smallint NULL Priority smallint NULL FromHost varchar 60 NULL Message text NTSeverity int NULL Importance int NULL EventSource varchar 60 EventUser varchar 60 NULL EventCategory

    Original URL path: https://www.serverspace.co.uk/blog/manage-and-analyse-device-logs-for-rapid-fault-finding-and-repair (2016-04-24)
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  • Speed up server deployment with slipstreaming
    aid the creation of automated installers across the Windows platform You can choose to either use the WAIK directly via the WAIK power shell set or indirectly using third party software such as NTLite or RS Server Customiser Using NTLite NTLite is free to use Windows Customisation tool that is ideal for creating slipstreamed images NTLite also has paid premium versions which include advanced features support and licensing These additional features are worth having if you are intensive user and do a lot of extra customisation What we will show you here however doesn t require the premium version Using WinRar or similar extract the content of the Windows ISO you wish to slipstream Download and install NTLite from https www ntlite com download Run NTLite and click Add in the toolbar to open the file browser then navigate to and load the target ISO Under the Image History select the version of Windows you want to use Most server ISOs for Windows contain multiple OS For this example we are using 2008 Standard and click Load in the toolbar The image below shows the Live Mode If you are using a paid version of NTLite you can create a bootable ISO installer from the current configuration of the host machine Once the ISO is loaded The Status should change to Loaded you can begin to make modifications to the OS The menu on the left hand side of the screen shows the wide range of options you now have for customising your OS We will focus on Features and Updates as these are the ones we most commonly use here Upon opening the Features section you will be presented with a view similar to that of Server Manager In this section you can select Roles and Features that you want to be pre installed So if you want Remote Desktop Services installed along with the OS just check the RDS Role on the menu Under the Updates section you can add you guessed it Windows updates Windows updates can be downloaded from the Microsoft download portal For bulk updates however there are catalogue applications that can perform mass downloads and torrents available for multiple update downloads Once your updates have downloaded you can add them by hitting the Add button in the toolbar and selecting the desired updates Your selected updates should then appear in the Integration Queue Once you are happy with your choices click on Apply in the left hand menu Ensure Create ISO is selected in the toolbar it will prompt you to provide a name and location for the ISO to output to and click Start NTLite will then run through the list displaying a progress bar on the right Once finished the image is saved and the ISO can be used as a slipstreamed version of Windows Using WAIK DISM via the command line For the purists out there it s also possible to slipstream Windows via the command line Deployment Image Servicing and

    Original URL path: https://www.serverspace.co.uk/blog/speed-up-server-deployment-with-slipstreaming (2016-04-24)
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  • Public vs. Private vs. Hybrid cloud - what's what?
    needs Public Cloud Public Cloud is the easiest model to understand and access Public Cloud platforms are fully owned and maintained by the provider with them creating virtual machines for your use Utility pricing is pretty much standard and virtual machines are becoming increasingly powerful and flexible Strengths of Public Cloud Cost Able to share their infrastructure between many clients Public Cloud providers are able to realise economies of scale which can be passed on to you in the form of affordable pay as you go pricing Flexibility Public Cloud computing offers you the greatest flexibility of all models changing the type or number of servers you take or migrating supplier completely are all technically straight forward Elasticity Public Cloud technology and most SLAs allow for a high degree of elasticity This is great for applications with demand that is variable or has spikes things like ticket sales or testing environments To take advantage your application must be cloud aware so that it can scale and utilise the additional capacity Uptime Due to the high levels of resilience typically built in to public clouds the usually offer exceptional uptime Best for Public Cloud computing is suitable for a wide range of applications Start ups and established businesses alike can benefit from flexible and affordable cloud servers on which to test developments or virtualise business process software Public Clouds may not meet industry specific data protection regulations and so may not suit businesses that are subject to these Private Cloud Technically no different to the Public Cloud model at its core Private Cloud is simply exclusively used or owned by a single organisation Strengths of Private Cloud Total control Total ownership equals total control If created in house this goes without saying If hosted with a third party provider anyone worth their salt will work with you to specify exactly the system you need from the ground up This customisation could include choice of geographic locations connectivity bandwidth resilience backup options and much much more Predictable performance Through your exclusive use of a Private Cloud platform you can have total visibility of utilisation demand and performance With proactive monitoring and management you can ensure your business is always running at optimum efficiency Best for Private Clouds offer additional security options over Public Cloud and so can be used to run sensitive or business critical applications or to process sensitive data such as customer payment details They are well suited as a result to eCommerce and SaaS delivery amongst other things Private Cloud will typically offer a lower total cost of ownership than Public Cloud if the compute load is consistent and not spikey Hybrid Cloud Hybrid Clouds combine computing models to leverage the strengths of each and can incorporate virtualised Public or Private Cloud colocated or on site infrastructure Hybrid Clouds enable firms to gain access to the benefits of cloud computing while continuing to make use of existing infrastructure Alternatively they can be used to divide operations and data between

    Original URL path: https://www.serverspace.co.uk/blog/public-vs.-private-vs.-hybrid-cloud-whats-what (2016-04-24)
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  • Ask smarter questions to make better decisions about your cloud provider
    potential customer to end up with the right supplier for them More often than not however these questions bring our customer and us to a deeper shared understanding and result in a solution that is not only fit for purpose but also economic flexible and future proof offering real business advantages So that you too can achieve a greater understanding of both your own requirements and the suitability of your potential providers we re happy to share the areas where we think the most revealing insights can be found We ve also complied a checklist of specific questions that you can download and use to qualify your potential future cloud hosting providers Capability There s no point qualifying a provider any further if they can t reliably provide the specific technical solution you require Once you know what your requirement is be it anything from a single colocated server all the way up to a bespoke hybrid cloud with dedicated firewalls load balancing and bandwidth check if your providers can offer it Don t just take their word for it however ask for relevant reference sites case studies and testimonials While you re at it find out how long they ve been in business how many customers they have and how much they turnover Comprehension When we consult with a potential customer we make a point of understanding their application and demonstrating that we do Challenge your potential providers to prove to you that they understand your business They don t need to be experts that s your job but they need to understand it well enough to extract its IT requirements and to identify opportunities and challenges that lie ahead Service and support This is the big one right Don t you wish you could try a provider s

    Original URL path: https://www.serverspace.co.uk/blog/ask-smarter-questions-to-make-better-decisions-about-your-cloud-provider (2016-04-24)
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  • How to save money with hosted VoIP
    experiences with VoIP call quality For some their experience is limited to Skype which as a fantastic free to use service doesn t make call quality promises Others have tried VoIP handsets somewhere and been disappointed Whatever the cause VoIP is still yet to wrestle free from its call quality shackles It s a fact that VoIP runs first over your internal network then the internet to its destination Limitations in the bandwidth available on either network which are shared with data communications of course and the uptime reliability of both can impact VoIP service availability and on occasion call quality This is however an acceptable compromise given the number of users lines extensions and features that can all use the same low cost connection to the world With the normal phone network you can pay for guaranteed call quality on a line by line basis If you want more lines you pay more Call quality will never be degraded but if there is no line free you can t make a call anyway Essentially what we are getting at is that a comparable system in terms of users and parallel external telephone lines will cost a lot less on hosted VoIP that it will on PSTN and this is even before we take into account call costs and other benefits How Hosted VoIP saves you money If call quality is under some circumstances less reliable than fixed line PSTN telephony the cost savings of VoIP need to be pretty compelling don t they Fortunately they are First of all there s no capital outlay You can buy VoIP as a utility just like you buy computation in the cloud this can include the central infrastructure and even the handsets Then there s call costs All internal calls will be

    Original URL path: https://www.serverspace.co.uk/blog/how-to-save-money-with-hosted-voip (2016-04-24)
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  • Automatically sync RADIUS configuration across multiple Domain Controllers
    lots of alternatives to RADIUS including the more complicated Lightweight Directory Access Protocol LDAP but RADIUS is simpler to configure in comparison so we focus on that here RADIUS is the client server protocol which runs on the transport layer of the TCP IP protocol stack using User Datagram Protocol UDP Gateway devices use the client element which sends user access requests to the server component located in this instance on the DC Credentials are then checked against the information stored within the AD and the appropriate response sent back to the users The issue with RADIUS and multiple Domain Controllers There is a problem however When the RADIUS configuration is changed on a DC unlike the AD database the changes are not replicated on the other DCs in the network Therefore it is necessary to update the configuration manually on each DC that is running RADIUS This process is time consuming and open to human error increasing the risk of disparity between DC This effectively negates the benefits of having a redundant system since the master DC or the one where RADIUS was last changed effectively becomes a single point of failure again In the event of a failure critical devices may become inaccessible due to errors in the live RADIUS configuration A scripted solution to sync RADIUS A more reliable solution is to use simple scripts scheduled to run automatically to replicate your RADIUS configuration across each DC running RADIUS First here are the two scripts you will need To export the RADIUS configuration on the master server netsh nps export filename C radius config xml exportPSK YES To import on another server netsh nps import filename masterIP radius config xml Make sure to replace masterIP with the IP address of your master DC Next to configure the

    Original URL path: https://www.serverspace.co.uk/blog/blog/automatically-sync-radius-configuration-across-multiple-domain-controllers (2016-04-24)
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  • What is Hybrid Cloud and how can it support SaaS delivery?
    term challenge or on going Hybrid Cloud objectives In the majority of cases the objective behind the deployment of a Hybrid Cloud is to provide access to the benefits offered by the Public Cloud model without applying it to the entire operation typically for security or performance reasons In the case of a SaaS vendor data security requirements or even industry regulation may dictate that certain data must be kept in a highly secure environment either in a Private Cloud on Colocated hardware or even on site Meanwhile the cost and scalability of Public Cloud can still be attractive for other aspects of SaaS delivery web serving for example The most common configuration of Hybrid Cloud in the SaaS space is Public Cloud combined with either Private Cloud or Colocated resources In this configuration data security commitments can still be met while Public Cloud resources can be used to either Provide additional short term capacity to cope with surges and spikes in workload Lower the overall costs of meeting ongoing storage and or computation requirements Leverage bespoke or non standard operating systems running on private resources Potential benefits of Hybrid Cloud use in SaaS delivery Depending on the actual configuration and your specific needs the potential benefits of Hybrid Cloud to a typical SaaS vendor include Access to the security and exclusivity aspects of private systems Access to the low cost and high flexibility of Public Cloud Ability to burst capacity of your Private Cloud using capacity in a Public Cloud Integration of your Colocated or on site infrastructure with Private or Public Cloud Maximisation of your existing investment with minimal additional cost Phased and or partial migration to the Cloud Challenges facing SaaS deployment of Hybrid Cloud Hybrid Cloud deployments are naturally among the most complex of cloud solutions As such successful specification deployment and use are subject to some unique challenges Definitions There is perhaps more confusion around the terms associated with Hybrid Cloud than with any other model Specification of the best solution can be hampered or even prevented by a lack of common understanding The most important thing here is that you can describe exactly what you currently have and what you need or want in the future without the use of subjective terminology Understanding of requirements Deployment of a Hybrid Cloud means that different parts of your operation will be performed on separate platforms A thorough understanding of your requirements is therefore essential Sound knowledge of how regulations affect your intended or the proposed plans as well as accurate historical data on resource usage would both be a good idea Networking and interconnection Key to the successful use of a Hybrid Cloud is the safe and secure network connection between its component parts If you are working with separate vendors or a dedicated Public Cloud supplier this responsibility might well fall to you Work with a hosting provider that has experience and expertise in Hybrid Cloud deployment to ensure you have help with this aspect

    Original URL path: https://www.serverspace.co.uk/blog/blog/what-is-hybrid-cloud-how-can-support-saas-delivery (2016-04-24)
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  • What is Private Cloud? Advantages and Disadvantages
    public cloud alternatives private cloud offers a greater degree of reliability thanks to a fault resilient and redundant architecture that isn t shared in any way Improved performance The resources within your private cloud infrastructure are at the disposal of your company and your company alone There is no contention with other companies for capacity only with your own workloads and far less chance that a malicious attack against another firm will affect your ability to function Increased flexibility Unlike a physical machine a virtual machine can be scaled up and down seamlessly And when you own all the virtual machines you can reallocate resources dynamically wherever they are needed most Total control Although there is a fair amount of universal best practice that you should no doubt follow you are free to build and configure your private cloud in any way you like For example you have the freedom to use any operating systems and applications you please and to allocate resources in any way you see fit As with all things as well as advantages private cloud has under some circumstances disadvantages Disadvantages of private cloud Cost With exclusivity comes increased cost If you plan to build your own private cloud you face a large capital outlay Fortunately you can rent your private cloud from a hosting service provider for a monthly fee and still benefit from all the advantages Under utilisation With a private cloud the cost of capacity under utilisation is a cost to you not to your provider Therefore managing and maximising utilisation becomes your concern Platform scaling Since you are unlikely to want to retain significant un utilised capacity based on the previous point large upward changes in your requirements are likely to require scaling of the physical infrastructure This is fine but may

    Original URL path: https://www.serverspace.co.uk/blog/blog/what-is-private-cloud-plus-advantages-disadvantages (2016-04-24)
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web-archive-uk.com, 2016-10-28