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Security

An introduction to CyberSecurity and VPNs

There are certain anonymous hacker groups, most of them work for government organisations of various countries. They have access to special equipment and probably clusters of computers.

Cookies are little pieces of information used by web browsers and web servers for identifying the logged in user and displaying appropriate information. However hackers steal these session cookies and use for different purposes. Their intent definitely evil, why would they steal session cookies?

Although cookies are encrypted, modern computing tools and hackers gigs are able to easily crack.

VPNs add an extra layer of encryption. In most scenarios, even VPNs encryption layer might not be enough when targeted by these organized crime units = mafia! Does not matter which countries spies (R&AW – India’s spying organization) are the culprits, when they do organized crime, they can be called mafia.

There are few different options for free self-hosted VPN software, my favorite are WireGuard and OpenVPN.

Wireguard: Fast, easy to setup etc…

OpenVPN: Slightly slow, extra layers of security, plenty of tweaks via configuration etc…

I might not be able to stop them completely from session hijacking, but at least the task won’t be easy. i.e instead spending 1 – 2$ for cracking, they might end up spending 40 – 50$ for hacking every single time i.e this is based on associated costs in a cloud computing environment. Either way, I am making their task little harder.

People who chose crime for a living made a conscious choice, now they must face the law for making the choice. What they did was NOT pardonable, they must suffer the consequences for their actions.

Tomorrow, I am doing live video on my startup’s youtube channel. I am going to talk about the above topics, show some implementation / customization details. In other words raise awareness – if needed consult for free or low costs for small startups and SME’s.

In the past in several blog posts I have talked about cybersecurity and I have spent several hours 50 – 100 hours. I want to distill this information and help other startups and SME’s.

I don’t have any fake aliases, nor any virtual aliases like some of the the psycho spy R&AW traitors of India. NOT associated – “ass”, eass, female “es”, “eka”, “ok”, “okay”, “is”, “erra”, yerra, karan, kamalakar, diwakar, kareem, karan, sowmya, zinnabathuni, bojja srinivas (was a friend and batchmate 1998 – 2002), mukesh golla (was a friend and classmate 1998 – 2002), thota veera, uttam’s, bandhavi’s, bhattaru’s, thota’s, bojja’s, bhattaru’s or Arumilli srinivas or Arumilli uttam (may be they are part of a different Arumilli family – not my family).

Mr. Kanti Kalyan Arumilli

Arumilli Kanti Kalyan, Founder & CEO
Arumilli Kanti Kalyan, Founder & CEO

B.Tech, M.B.A

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Founder & CEO, Lead Full-Stack .Net developer

ALight Technology And Services Limited

ALight Technologies USA Inc

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Phone / SMS / WhatsApp on the following 3 numbers:

+91-789-362-6688, +1-480-347-6849, +44-07718-273-964

+44-33-3303-1284 (Preferred number if calling from U.K, No WhatsApp)

kantikalyan@gmail.com, kantikalyan@outlook.com, admin@alightservices.com, kantikalyan.arumilli@alightservices.com, KArumilli2020@student.hult.edu, KantiKArumilli@outlook.com and 3 more rarely used email addresses – hardly once or twice a year.

Categories
Security

Importance of securing keys

In the past, I have written several times of powerful surveillance equipment in the hands of br*thel mafia! The equipment has video camera capabilities i.e viewing, listening, speakers – making noise / sounds / talking and even mind-reading. The equipment also has mind-reading and neural manipulation capabilities. They sometimes even enact as though helping by prompting, but in reality mind-reading / guessing i.e predicting.

Now when it comes to passwords, secure configuration keys it’s very hard to keep these away from these cyber thugs. Software should not show keys, even public keys. For example, most Cloud based connection keys, instead should be sent directly to KeyVault etc…

Even VPN software such as Wireguard. When Wireguard displays public key, it’s like anouncing “find the corresponding private key”. If they have some kind of advanced computers (probable, because they have advanced equipment), they can probably crack the key in few minutes. If the public keys are not displayed, ask them to guess. If they capture network packets, if they know the plain bytes being transmitted, they could try. Takes little extra work for them to figure out.

The software I develop at my startups – ALight Technology And Services Limited (U.K) ALight Technologies USA Inc (U.S.A) are definitely going to make the cyber thugs game harder.

We software engineers should make the work of cyber thugs harder, not easier. Those cyber thugs are like a gang of dacoits anyway.

BTW, why do I call them br*thel mafia? Because they offer women and ask me to participate in crime! Don’t know if some of the women are being blackmailed or not, but some of them seem to be sl*ts. Some women are sensitive and could have been blackmailed by n*des etc…

I don’t have any fake aliases, nor any virtual aliases like some of the the psycho spy R&AW traitors of India. NOT associated – “ass”, eass, female “es”, “eka”, “ok”, “okay”, “is”, “erra”, yerra, karan, kamalakar, diwakar, kareem, karan, sowmya, zinnabathuni, bojja srinivas (was a friend and batchmate 1998 – 2002), mukesh golla (was a friend and classmate 1998 – 2002), thota veera, uttam’s, bandhavi’s, bhattaru’s, thota’s, bojja’s, bhattaru’s or Arumilli srinivas or Arumilli uttam (may be they are part of a different Arumilli family – not my family).

Mr. Kanti Kalyan Arumilli

Arumilli Kanti Kalyan, Founder & CEO
Arumilli Kanti Kalyan, Founder & CEO

B.Tech, M.B.A

Facebook

LinkedIn

Threads

Instagram

Youtube

Founder & CEO, Lead Full-Stack .Net developer

ALight Technology And Services Limited

ALight Technologies USA Inc

Youtube

Facebook

LinkedIn

Phone / SMS / WhatsApp on the following 3 numbers:

+91-789-362-6688, +1-480-347-6849, +44-07718-273-964

+44-33-3303-1284 (Preferred number if calling from U.K, No WhatsApp)

kantikalyan@gmail.com, kantikalyan@outlook.com, admin@alightservices.com, kantikalyan.arumilli@alightservices.com, KArumilli2020@student.hult.edu, KantiKArumilli@outlook.com and 3 more rarely used email addresses – hardly once or twice a year.

Categories
Security

Some nice to have security features in Operating Systems

I think the CyberSecurity market is going to increase multi-fold, because I know the capabilities of the anonymous spies/hackers/mafia’s invisible drone equipment. They would put the blame on “five eyes” etc… But why would “five eyes” help for infiltrating their own countries? Does not make sense. I.T industry under threat by the equipment mafia/spies. Mafia = organized crime! The equipment has been mis-used for organized crime, they can be and should be considered mafia, although rogue R&AW spies. They have even stole money from bank account.

I think Operating Systems should be secure. For example, normal people don’t run servers etc… block incoming connections. Everyone don’t have printers / other laptops in the network. Remote access / admin shares are not needed. When necessary, I.T professionals know what to do.

Create secure filesystem areas for sensitive info for special apps such as VPNs etc…

Password based logins are no longer secure. Enable bio-metric or hardware keys based login and provide the ability to disable password based login. Even mobiles should do this.

Don’t show sensitive information in alerts such as SMS – the invisible drone equipments guys did several OTP thefts on several occassions, They even stole money from my own bank accounts.

Websites should not show config keys etc… in plain text. I think Azure and AWS should allow the ability to export keys directly into KeyVault or SecretsManager etc… For example some blob storage key or IAM role keys – allow specifying the name for storage and directly store.

Seriously the world of computing is under threat from the mafia psychopath’s equipment. They did steal money, they did organized crime, murder attempts, they did try to put the blame on others, they did shadow, stalk, harass, blackmail, threaten etc… Probably signature forgeries, money laundering etc…

I don’t have any fake aliases, nor any virtual aliases like some of the the psycho spy R&AW traitors of India. NOT associated – “ass”, eass, female “es”, “eka”, “ok”, “okay”, “is”, “erra”, yerra, karan, kamalakar, diwakar, kareem, karan, sowmya, zinnabathuni, bojja srinivas (was a friend and batchmate 1998 – 2002), mukesh golla (was a friend and classmate 1998 – 2002), thota veera, uttam’s, bandhavi’s, bhattaru’s, thota’s, bojja’s, bhattaru’s or Arumilli srinivas or Arumilli uttam (may be they are part of a different Arumilli family – not my family).

Mr. Kanti Kalyan Arumilli

Arumilli Kanti Kalyan, Founder & CEO
Arumilli Kanti Kalyan, Founder & CEO

B.Tech, M.B.A

Facebook

LinkedIn

Threads

Instagram

Youtube

Founder & CEO, Lead Full-Stack .Net developer

ALight Technology And Services Limited

ALight Technologies USA Inc

Youtube

Facebook

LinkedIn

Phone / SMS / WhatsApp on the following 3 numbers:

+91-789-362-6688, +1-480-347-6849, +44-07718-273-964

+44-33-3303-1284 (Preferred number if calling from U.K, No WhatsApp)

kantikalyan@gmail.com, kantikalyan@outlook.com, admin@alightservices.com, kantikalyan.arumilli@alightservices.com, KArumilli2020@student.hult.edu, KantiKArumilli@outlook.com and 3 more rarely used email addresses – hardly once or twice a year.

Categories
Security VPN

Some interesting and important configuration settings for OpenVPN

Yesterday in the announcements blog, I have mentioned about – Security levels at ALight Technology And Services Limited (U.K) ALight Technologies USA Inc (U.S.A).

Over the past few months, I have been writing about CyberSecurity, VPNs etc… I am using two levels of encryption i.e outer layer uses OpenVPN and the traffic gets sent to a OpenVPN server, the second layer is based on Wireguard. I use Oracle VM Virtual Box with Ubuntu linux for accessing sensitive servers. The ubuntu virtual box uses Wireguard based VPN while the Windows based laptop uses OpenVPN.

The reference manual for OpenVPN can be accessed from: https://openvpn.net/community-resources/reference-manual-for-openvpn-2-6/

–fast-io: Experimental but apparently has speed improvement.

–mlock: Tunnel data etc… are not written to disk, might have some speed improvement.

–script-security: The security setting for allowing what types of scripts to execute.

–allow-compression (NO): Don’t use compression.

–auth: Use 256-bit or higher algorithms, I am using 512-bit.

–auth-user-pass: Client option for the GUI to prompt for username and password.

–single-session: After first connection, don’t allow more connections.

–max-clients: Maximum number of concurrent clients to allow.

–verify-client-cert: Use require

–reneg-sec: How often should the keys get changed

–tls-cert-profile: Use at least preferred

–tls-cipher: Specify list of ciphers i.e mention only strong ciphers. Suggestion: TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384:TLS-DHE-RSA-WITH-AES-256-CBC-SHA256:TLS-DHE-RSA-WITH-AES-256-CBC-SHA

–tls-version-min: Use “1.2”

–hand-window: How long can a handshake happen.

–tcp-queue-limit: Use 4096, the default value very less and causes connection drops.

–sndbuf: 512000 for buffer size, the default values cause connection drops.

–rcvbuf: 512000 for buffer size, the default values cause connection drops.

The other interesting useful options:

txqueuelen 15000
tun-mtu 9000
mssfix 0

auth-gen-token
reneg-sec
tran-window

The following scripting options are useful:

client-connect
client-disconnect

–auth-user-pass-verify

I don’t have any fake aliases, nor any virtual aliases like some of the the psycho spy R&AW traitors of India. NOT associated – “ass”, eass, female “es”, “eka”, “ok”, “okay”, “is”, “erra”, yerra, karan, kamalakar, diwakar, kareem, karan, sowmya, zinnabathuni, bojja srinivas (was a friend and batchmate 1998 – 2002), mukesh golla (was a friend and classmate 1998 – 2002), thota veera, uttam’s, bandhavi’s, bhattaru’s, thota’s, bojja’s, bhattaru’s or Arumilli srinivas or Arumilli uttam (may be they are part of a different Arumilli family – not my family).

Mr. Kanti Kalyan Arumilli

Arumilli Kanti Kalyan, Founder & CEO
Arumilli Kanti Kalyan, Founder & CEO

B.Tech, M.B.A

Facebook

LinkedIn

Threads

Instagram

Youtube

Founder & CEO, Lead Full-Stack .Net developer

ALight Technology And Services Limited

ALight Technologies USA Inc

Youtube

Facebook

LinkedIn

Phone / SMS / WhatsApp on the following 3 numbers:

+91-789-362-6688, +1-480-347-6849, +44-07718-273-964

+44-33-3303-1284 (Preferred number if calling from U.K, No WhatsApp)

kantikalyan@gmail.com, kantikalyan@outlook.com, admin@alightservices.com, kantikalyan.arumilli@alightservices.com, KArumilli2020@student.hult.edu, KantiKArumilli@outlook.com and 3 more rarely used email addresses – hardly once or twice a year.