Jose Campo Profile
Jose Campo

@JAC_DBA

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7
Following
89
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13
Statuses
151

Security Engineer | Former MSSQL DBA

Joined July 2013
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@JAC_DBA
Jose Campo
24 days
Most pentest courses mention SQL Server, but skip over the basics. They don't teach basic permissions or how Logins and DB users work together. Let me explain MSSQL permissions using a house analogy. šŸ“š Read it here: . #MSSQL #PEN200 #PEN300 #OSCP.
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duckwrites.medium.com
I have not seen a single pentest course that explains basic MSSQL permissions in a simple way. Not even HTB Academyā€Šā€”ā€Šand that is one of…
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@JAC_DBA
Jose Campo
2 months
What a Simple HTTP Request Can RevealĀ šŸ”šŸ’». You don’t always need brute-force tools or scanners to learn about your target. šŸ‘‰ Learn how:. #OSWA #WebPentesting #AppSecurity #curl #CBBH.
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duckwrites.medium.com
Enumeration is always the first step in any pentestā€Šā€”ā€Šand that includes web applications. Even a basic HTTP request can uncover valuable…
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@JAC_DBA
Jose Campo
3 months
Stolen passwords can be reset. But what about stolen #biometrics?. Let me share a story—my story—about something that happened nearly 20 years ago while I was boarding a plane back to #Colombia. šŸ” Read the full story:
duckwrites.medium.com
Today, I’m still writing about cybersecurity, but this one’s personal, less technical. A true story though. Something that recently…
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@JAC_DBA
Jose Campo
3 months
Don’t throw a lot of vCPUs to your OSCP VM. It doesn’t need more than 2 vCPUs . 4 at max . Too many vCPUs will actually make your laptop slower and can cause you issues during your exam :. #PEN200 #vmware #overAllocation #oscp #hashcat #VMperformance.
duckwrites.medium.com
I ran a simple but eye-opening experiment. I took a common Kerberos TGS hash, used the popular rockyou.txt wordlist, and cracked it using Hashcat with 2, 4, 6, and 8 CPU cores — all inside a Kali…
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@JAC_DBA
Jose Campo
3 months
OSCP quick tip:. For the OSCP exam Worry less about network lag and more about MTU issues. Latency: .adds delay—things still function. Bad MTU: .Oversized packets (common with VPN/tunnels) get dropped ⇒ no reverse shell.
duckwrites.medium.com
Rerverse Shell — AI generated
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@JAC_DBA
Jose Campo
6 years
RT @eLearnSecurity: Want a chance to win our PTP course? šŸ˜
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@JAC_DBA
Jose Campo
7 years
RT @GFritchey: HEY!!!!. Guess what's finally available on Amazon If you REALLY want a print copy of my book on execution plans, you can get….
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@JAC_DBA
Jose Campo
9 years
#SQLSATURDAYHouston pre conference with Brent Ozar. Excited!.
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@JAC_DBA
Jose Campo
9 years
RT @kleegeek: I'm proud to announce a new ebook with @jdgreen - Gorilla Guide to #Storage Strategies for #sqlserver.
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@JAC_DBA
Jose Campo
9 years
RT @BrentO: Reading: Is a RID Lookup faster than a Key Lookup? tl;dr - heaps are often way slower.
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@JAC_DBA
Jose Campo
9 years
SQL2016 will be out on June 1st:
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@JAC_DBA
Jose Campo
9 years
Short but great blog about NUMA nodes.
@mrdenny
Denny Cherry - @mrdenny.com on BSky
9 years
Blogged: How many NUMA nodes should I have if I have lots of RAM and just a few cores? #blogged #en #sqlserver.
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@JAC_DBA
Jose Campo
9 years
I am very excited! Oracle guys, now there will be no excuse, lol .
@SQLServer
Microsoft SQL Server
9 years
Announcing #SQLServer on #Linux. Learn more: #DataDriven
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@JAC_DBA
Jose Campo
9 years
RT @BenjaminNevarez: Reading "Announcing SQL Server on Linux"
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@JAC_DBA
Jose Campo
9 years
RT @DBArgenis: Best answer I've seen to the question "Why SQL Server on Linux?": "Because Ballmer has left the building".
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@JAC_DBA
Jose Campo
9 years
#sqlserver now on Linux: , wohoo! I am excited!.
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