How to hide Ports 20/21/500 ?

CarvedDuck

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Hi All,

Win7 starter, Acer netbook.

Shielddsup at GRC.com shows Ports 20/21 and 500 are visible to the internet.

Should I worry?

How can I hide them like the rest of the ports?

I tried changing Firewalls from Private Firewall to Comodo, but still the same results.

Thanks
 
Last edited:

My Computer My Computer

At a glance

Win7 Starter
OS
Win7 Starter
Port 21 = ftp command port
Port 20 = ftp data port
Port 500 =

[FONT=Verdana,Arial,Helvetica,Sans-Serif,MS Sans Serif]
transpixel.gif

Port 500 is used by the Internet key exchange (IKE) that occurs during the establishment of secure VPN tunnels. Users of VPN servers and clients may encounter this port.
[/FONT]
Did you know that you can get answers to such questions in ShieldsUp?
 

My Computer My Computer

At a glance

MS Windows 7 Ultimate SP1 64-bitAMD A10-4600M6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)AMD Radeon HD 7660G
Computer Manufacturer/Model Number
Toshiba Satellite S875D-S7239 laptop
OS
MS Windows 7 Ultimate SP1 64-bit
CPU
AMD A10-4600M
Motherboard
AMD Pumori (Socket FT1)
Memory
6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)
Graphics Card(s)
AMD Radeon HD 7660G
Sound Card
High Definition Audio Device
Monitor(s) Displays
Generic PnP Monitor (1600x900@60Hz)
Screen Resolution
1600x900@60Hz
Hard Drives
SSD 119GB Corsair CSSD-V128GB2 ATA Device
Keyboard
Standard PS/2 Keyboard
Mouse
HP Wireless Optical Mobile Mouse Model FHA-3410
Internet Speed
What the local pub, local coffee shop offers.
Other Info
Optical Drive:MATSHITA BD-CMB UJ160B ATA Device


Also have an Asus ha1002xp netbook with Win 7 Ultimate installed.
Get rid of those 3rd party firewalls and use Windows Firewall.
Here is how to use Windows Firwall to block ports:
Block a Port in Windows 7
 

My Computer My Computer

At a glance

MS Windows 7 Ultimate SP1 64-bitAMD A10-4600M6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)AMD Radeon HD 7660G
Computer Manufacturer/Model Number
Toshiba Satellite S875D-S7239 laptop
OS
MS Windows 7 Ultimate SP1 64-bit
CPU
AMD A10-4600M
Motherboard
AMD Pumori (Socket FT1)
Memory
6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)
Graphics Card(s)
AMD Radeon HD 7660G
Sound Card
High Definition Audio Device
Monitor(s) Displays
Generic PnP Monitor (1600x900@60Hz)
Screen Resolution
1600x900@60Hz
Hard Drives
SSD 119GB Corsair CSSD-V128GB2 ATA Device
Keyboard
Standard PS/2 Keyboard
Mouse
HP Wireless Optical Mobile Mouse Model FHA-3410
Internet Speed
What the local pub, local coffee shop offers.
Other Info
Optical Drive:MATSHITA BD-CMB UJ160B ATA Device


Also have an Asus ha1002xp netbook with Win 7 Ultimate installed.
Did you know that you can get answers to such questions in ShieldsUp?

How kind, yes I did read that description on GCR but it means nothing to ME!

If I was that smart I would not be asking here.

I also rad there that 20/21 are FTP ports but again what does that mean or matter?

If I knew enough to make those decisions myself I would not be asking here.

Windows Firewall continues to get mediocre reports at best even though Security Essentials gets high marks so it is not a Microsoft hate thing, the firewall is obviously a weenie performer. It makes sense to this old fart, at least, to use the things that consistently get the best reviews. I have been wrong before, but I am pretty sure that is a good policy.

So a little more understanding of the plight of others who may not be so blessed with the knowledge of the technical aspects of this would go a long way. I am sure this will fall on your deaf ears, but a little humility and understanding makes for a nicer person.

So, lemme try again.

Should I be worried?

How can I hide them?

Thank you.
 

My Computer My Computer

At a glance

Win7 Starter
OS
Win7 Starter
Google is your friend.
 

My Computer My Computer

At a glance

MS Windows 7 Ultimate SP1 64-bitAMD A10-4600M6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)AMD Radeon HD 7660G
Computer Manufacturer/Model Number
Toshiba Satellite S875D-S7239 laptop
OS
MS Windows 7 Ultimate SP1 64-bit
CPU
AMD A10-4600M
Motherboard
AMD Pumori (Socket FT1)
Memory
6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)
Graphics Card(s)
AMD Radeon HD 7660G
Sound Card
High Definition Audio Device
Monitor(s) Displays
Generic PnP Monitor (1600x900@60Hz)
Screen Resolution
1600x900@60Hz
Hard Drives
SSD 119GB Corsair CSSD-V128GB2 ATA Device
Keyboard
Standard PS/2 Keyboard
Mouse
HP Wireless Optical Mobile Mouse Model FHA-3410
Internet Speed
What the local pub, local coffee shop offers.
Other Info
Optical Drive:MATSHITA BD-CMB UJ160B ATA Device


Also have an Asus ha1002xp netbook with Win 7 Ultimate installed.

My Computer My Computer

At a glance

Windows 7 Ultimate X64 SP1Intel i5-2550K, Differing ~4.4-4.8GHz No buil...16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GBASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built Desktop By DataTech
OS
Windows 7 Ultimate X64 SP1
CPU
Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard
ASUS P8Z68-V PRO/GEN3
Memory
16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card(s)
ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card
Onboard Realtek 5-1
Monitor(s) Displays
Samsung P2570HD
Screen Resolution
1920x1080
Hard Drives
Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
PSU
Corsair HX650W
Case
Inwin Dragon Rider
Cooling
Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Keyboard
E-Z Eyes, bright yellow keys with large characters
Mouse
steelseries SENSEI Laser Pro Gaming
Internet Speed
48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus
Norton Internet Security 2013
Browser
IE 10, Opera, Pale Moon if needed
Other Info
4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
Where do these people come from? They ask a question, get an answer and come back telling that's not an answer I was expecting so shut up and answer again.

Yes, you should be worried. Those open ports mean you PC is hijacked. Close them now!

Kari
 

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Windows 10 Pro x64 EN-GB1.6 GHz Intel Core i7-720QM Processor6 GBATI Mobility Radeon HD 5850 Graphics
Computer type
Laptop
Computer Manufacturer/Model Number
HP ENVY 17-1150eg
OS
Windows 10 Pro x64 EN-GB
CPU
1.6 GHz Intel Core i7-720QM Processor
Memory
6 GB
Graphics Card(s)
ATI Mobility Radeon HD 5850 Graphics
Sound Card
Beats sound system with integrated subwoofer
Monitor(s) Displays
17" laptop display, 22" LED and 32" Full HD TV through HDMI
Screen Resolution
1600*900 (1), 1920*1080 (2&3)
Hard Drives
Internal: 2 x 500 GB SATA Hard Disk Drive 7200 rpm
External: 2TB for backups, 3TB USB3 network drive for media
Cooling
As Envy runs a bit warm, I have it on a Cooler Master pad
Keyboard
Logitech diNovo Media Desktop Laser (bluetooth)
Mouse
Logitech Performance Mouse MX
Internet Speed
50/10 Mbps VDSL
Antivirus
Windows Defender 4.3.9431.0
Browser
Maxthon 3.5.2., IE11
Windows Firewall is good - in spite of what you may have read.

Fiddly to block outbound connections - so if you want to do that as well - try the free version of Windows7FirewallControl: Sphinx Software
 

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    7 X64i5 84002x8gb 3200mhz
    Computer type
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    7 X64
    CPU
    i5 8400
    Motherboard
    gigabyte b365m ds3h
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    7x64g54008gb ddr4 2400
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    7x64
    CPU
    g5400
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    ga b365m ds3h
    Memory
    8gb ddr4 2400
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    xfx pro 450w

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Windows 10 Pro. 64/ version 1709 Windows 7 Pr...Intel i7-6800K @ 4.3Corsair Platinum 16 gig @2400EVGA GTX 1070 OC
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
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Intel i7-6800K @ 4.3
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ASUS X-99 Deluxe II
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Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
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1920-1080 or 1280-720 HDMI
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INTEL SSD 730-240 Gb Sata 3.0/
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XSPC/ Water Cooled CPU
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Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
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I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
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