How to create handy boot USB toolbox

To have for each tool CD/DVD/USB flash disk is too inconvenient, so let’s combine on one USB flash disk all of them.

  1. Download yumi
  2. format your Flash disk as FAT32 (ntfs will not work with grub loader), so there is iso file limitation of FAT32, not more than 2GB.
  3. never leave in iso file name spaces. Prepare all necessary iso files (usually i prefer to have multiple versions of hiren tools/ERD/DART10/acronis tools, veeam BER, macrius repair disk, veeam agent, WDS capture disk and so on)
  4. iso files are not extracted and copied as is to the flash disk !!! not
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How to create site to site vpn from pfsense to openvpn server.part3

  1. How to create site to site VPN for SMB with low IT budget. part1
  2. How to setup OpenVPN server on debian? part2
  3. How to create site to site vpn from pfsense to openvpn server.part3

OK, we already have Openvpn server at central office. Now our task is to configure branch office pfsenses (why pfsense) to connect central office Openvpn server:

  1. create Hyperv VM for pfsense at branch office 01:
    • mount pfsense iso to the pfsense VM
    • create fixed size virtual disk, 5gb is enough. if you use dynamic disk – pfsense freebsd installer can fail
    • before pfsense installation
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How to setup OpenVPN server on debian? part2

We continue previous post about creation of site to site vpn between multiple branch offices and central office of company.

  1. Install latest Debian Linux (better from network installer). During the installation choose:
    • ssh server
    • std system utilities
  2. Configure IP address for the server. For example nano /etc/network/interfaces:
iface eth0 inet static
address 192.168.0.2 # it is considered that 192.168.0.1 is used as dgw in central 
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How to create site to site VPN for SMB with low IT budget. part1

It’s commonplace to connect multiple company branches and central office by VPN. For my customers for example it’s needed to :

  1. implement Active Directory (for small companies with single IT team – only one AD domain and multiple AD sites, everywhere if possible one AD DC)
  2. integrate into one DB all Time Attendance machines – one Zkteco application for accountant at central office connects thru vpn
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If you need temporary VPS hosting (for testing, for development and so on)

Sometimes temporary, moreover free VPS hosing for 1 year is great and generous opportunity. Usually it’s very handy for testing (for example to install linux, configure lamp, wordpress, 2fa, freeSSL, plugins and so on ), web development, personal blogs, short-term projects like election events and so on.

Amazon Web service suggests a such ‘halyava’ for whole 1 year. Just be VERY careful to not trespass limits of free tier (for example AWS automatically has done EBS snapshots during import of my vmware ova to AWS AMI and later on to free tier instance — although 09 cents were generously forgiven … Read the rest

Some considerations about what is highly preferable to have for SMB companies in Mongolia:

 

1. For central office to have at least small server room – dedicated isolated room with at least consumer Air Conditioner [better japanese – about 1500000 mnt + installation fee]( when you use only RACK without server room – too loud, physically not secure even for locked RACK [anybody can hit or collide with RACK and shock damages hard drives], too much dust which will clog all fans and as consequence rise of temperature, fan speed, even more noise). Size is at least 2×2.5 meter to place RACK and be able to go around it, room door better Read the rest

Advantages and disadvantages of Dell Optiplex as a cheap server for SMB.

 

pros:
1. considerably cheaper, more affordable
2. small size
3. later can be re-used as usual workstation

cons:
1. not so reliable as a real server
2. weak redundancy
3. not supported by vmware and so on
4. no real RAID, only fake intel matrix raid.
5. not so high quality of internal parts and so on
6. if to compare with Dell PowerEdges – no lifecycle controller, idrac and so on (poor remote management)

But what justifies such compromise approach:
1. i7 cpu is not so good as recent Xeon, but very close by performance (good enough for

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Compromise – decisions for SMB. Value for money of such decisions.

It’s common that many innovative IT technologies are not affordable for majority of Mongolian SMB companies or small branches due to the fact of high price for IT equipment (even in case of almost zero price for illegally used software). Companies who provide VMS/video management solutions (video servers), companies like Interactive, Navision and other vendors are forced to use Desktop computers as a server for implementations of own products at customer site of small companies who cannot afford to invest too much into hardware immediately. How justified such decisions? Surely all of service providers try at first to suggest professional … Read the rest