Related to #34, there could be more things done to improve the layout on small devices/screens.

Some users have reported not being able to see the opened ports in the list (black text on black background). This seems to happen with the Nexus 5x. Probably an appcompat issue...

Provide new features for looking up various DNS records.

[Discover lan status][Clear all]<--- this

Hi there i've noticed a few things that would need a little enhancement if you ask me :)

1. Possibility to "type in" Port Range is there, but the app freezes rather quickly after having only scanned about 500-to-2000 ports of the possible 65535.

2. Possibility to select TCP/UDP (if it isnt already scanning for both)

3. Iam not sure if you conceptualized "Port-Authority" as an Intranet-only Port-Scanner but if not it would be really nice to be able to scan the own Server from the outside.

Other than that its a great tool which is extremly handy if you want to know the IP of the host(s) that are up on your local network ALTHOUGH the host name resolution is still kinda buggy (most networks except for the router are named "localhost")

Have a nice day! 👍

Unicode icons are nice and easy but are not consistent across devices (and may not work on some!)

AFAIK the app only supports 192.168.. at the moment, But not the other private networks. At least it failed in my 10...* net. More precisely it only scanned the first 255 hosts in the net.

Here a nice list of private networks in IPv4:
https://en.wikipedia.org/wiki/Private_network#Private_IPv4_address_spaces

It would be great if the app would change the range of IP addresses according to the net.

How about ascending or descending hosts? Would be great to get Hostname directly in the discover overview. How about opening port eighty directly to browser? Im missing this feature.

I use an old device with 848×480 screen, on which Port Authority (1.7.2 from f-droid) works great, except that the latest release leaves very little space to display the list of devices found. The list of discovered hosts covers 21% of the screen height in portrait mode (and 0% in landscape mode). The status bar + title + "Discover hosts" button have 23%. The "Device info" section uses the rest (56%).
Would it be possible to either disable the "Device info" section when displaying the host list, or using standard font size (title, etc.), or using shorter labels/no line wrap in the "Device info" section ("MAC Address" is uselessly split in 2 lines, horizontal lines take a lot of space, etc.), in order to have a really suable list of devices found ?
TIA

After scanning hosts, when tap on host with symbol "_" in hostname for ports scanning application crashed.
Android 5.0.1 Nexus 5.

I just want a simple port checker app for my network.
I don't want any app to connect outside(Internet) without my permission.

Where does this app connect to check external IP?
Consider removing it or let user to disable it before connection.

Build in functionality to allow for users to update the MAC vendor DB themselves so that it doesn't need to be updated in a separate release.

Closely related to #41.

I am sorry to bring this one up again, but it seems that I should have specified in my previous request.

#26

Can we please get the MAC address vendor for the: DISCOVERED LAN HOSTS
in the main device info page? The reason I ask is that sometimes the host name for some devices does not display on the main page. Instead it displays the internal IP address of the device. On a network with many of these said devices, having the MAC vendor will make it easier to know which device it is.

Some devices aren't showing the checkboxes as they're colored black (black on black = invisible). Due to an AppCompat theme issue.

Would you consider including the .apk file with the releases/ – for those running their devices "Google-free" and thus having no Play Store access? I'd then even include it here, so people can use the F-Droid client to stay updated automatically 😇 Thanks in advance!

Apache HTTP lib is deprecated.

When was the last time it was updated? A lot of my devices show up as not in the database.

Could occur at first app start (opt-in) and/or in a settings menu (opt-out). Some users may not want MAC info automatically shared invisibly with a third party.

in the file HostActivity in line 159 "if((startPort - stopPort >= 0)) {"

should be a "<=" because stopPort must be greater than startPort.
btw nice work

Theoretically, you should have also just received my feedback.

The port database should be updated automatically from IANA, and users should be able to custom label higher ports. This will be useful for LAN auditing and allowing users to keep track of what services are where in their LAN.

Hello, I'm using Port Authority 1.5.0 (thank you) on a Nexus, 5 5.1.1.

When I run a port scan on a known host, not all open ports are shown.

Even if I use the Scan Port Range specifically covering the open ports, they do not show on the list, although I can see in the host (tshark) that it did SYN,ACK the probes.

For example, Scan Well Known Ports only gives me:
143 - imap
22 - ssh
25 - smtp
53 - domain
80 - http

Scan Port Range from 1 - 1024 results in the same list.

Nevertheless, I have more ports open as the nmap (from other host in the same subnet) shows:
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
53/tcp open domain
80/tcp open http
143/tcp open imap
443/tcp open https
587/tcp open submission
993/tcp open imaps
3128/tcp open squid-http
3306/tcp open mysql
5222/tcp open xmpp-client
9090/tcp open zeus-admin
9091/tcp open xmltec-xmlmail

If I look at tshark on the target host, while doing for example a Port Authority scan in the range 9089-9092, I get this:

Capturing on 'eth1'
1 0.000000 192.168.168.30 -> 192.168.168.1 TCP 74 46612→9089 [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1 TSval=13716725 TSecr=0 WS=64
2 0.000044 192.168.168.1 -> 192.168.168.30 TCP 54 9089→46612 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0
3 0.000171 192.168.168.30 -> 192.168.168.1 TCP 74 60554→9091 [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1 TSval=13716725 TSecr=0 WS=64
4 0.000216 192.168.168.1 -> 192.168.168.30 TCP 74 9091→60554 [SYN, ACK] Seq=0 Ack=1 Win=28960 Len=0 MSS=1460 SACK_PERM=1 TSval=670147978 TSecr=13716725 WS=128
5 0.000556 192.168.168.30 -> 192.168.168.1 TCP 74 55836→9090 [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1 TSval=13716725 TSecr=0 WS=64
6 0.000589 192.168.168.1 -> 192.168.168.30 TCP 74 9090→55836 [SYN, ACK] Seq=0 Ack=1 Win=28960 Len=0 MSS=1460 SACK_PERM=1 TSval=670147978 TSecr=13716725 WS=128
7 0.000611 192.168.168.30 -> 192.168.168.1 TCP 74 35060→9092 [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1 TSval=13716725 TSecr=0 WS=64
8 0.000638 192.168.168.1 -> 192.168.168.30 TCP 54 9092→35060 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0
9 0.002448 192.168.168.30 -> 192.168.168.1 TCP 66 60554→9091 [ACK] Seq=1 Ack=1 Win=87616 Len=0 TSval=13716726 TSecr=670147978
10 0.002565 192.168.168.30 -> 192.168.168.1 TCP 66 55836→9090 [ACK] Seq=1 Ack=1 Win=87616 Len=0 TSval=13716726 TSecr=670147978
11 0.002807 192.168.168.30 -> 192.168.168.1 TCP 66 60554→9091 [FIN, ACK] Seq=1 Ack=1 Win=87616 Len=0 TSval=13716726 TSecr=670147978
12 0.002937 192.168.168.30 -> 192.168.168.1 TCP 66 55836→9090 [FIN, ACK] Seq=1 Ack=1 Win=87616 Len=0 TSval=13716726 TSecr=670147978
13 0.003144 192.168.168.1 -> 192.168.168.30 TCP 66 9090→55836 [FIN, ACK] Seq=1 Ack=2 Win=29056 Len=0 TSval=670147979 TSecr=13716726
14 0.005853 192.168.168.1 -> 192.168.168.30 TCP 66 9091→60554 [FIN, ACK] Seq=1 Ack=2 Win=29056 Len=0 TSval=670147979 TSecr=13716726
15 0.006044 192.168.168.30 -> 192.168.168.1 TCP 66 55836→9090 [ACK] Seq=2 Ack=2 Win=87616 Len=0 TSval=13716726 TSecr=670147979
16 0.007130 192.168.168.30 -> 192.168.168.1 TCP 66 60554→9091 [ACK] Seq=2 Ack=2 Win=87616 Len=0 TSval=13716726 TSecr=670147979

Server responded on ports 9090 and 9091, but they do not show on Port Authority as opened.

I can also access the server from the phone at port 9091 (Openfire administration web interface), so there is no blocking between them.

If you need any extra debugging info please let me know.

Best regards,
Joao S Veiga

The ARP scan by itself does not seem to be reliable enough for some people and their networks. Implement a multistage scan where ICMP is used in addition to ARP.

Hello, I was just trying to understand code but I didnt get the part where u defined NUM_THREADS variable as 16 in ScanHostAsynTask.java. why is it 16? and also String parts[] = ip.split("."); in this line what exactly does this do ? thanks in advance. my eternal respect...

I saw the commit that will track ANRs, crashes, ect. Will this be an opt-in thing or at least optional as this is a privacy issue and I do not install apps that track and record any of my activity

15d16ec

Some users have expressed interest in being able to sort hosts ascending/descending. Related to #17 (comment)

Expose an option to allow users to tweak the timeout for host and port scans.

After starting the app it's closed. Here the logcat:

01-13 09:43:30.138 I/Timeline(14923): Timeline: Activity_launch_request id:com.aaronjwood.portauthority time:44255178
01-13 09:43:30.138 I/ActivityManager(2286): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 pkg=com.aaronjwood.portauthority cmp=com.aaronjwood.portauthority/.activity.MainActivity} from uid 10137 on display 0
01-13 09:43:30.198 I/ActivityManager(2286): Start proc com.aaronjwood.portauthority for activity com.aaronjwood.portauthority/.activity.MainActivity: pid=18992 uid=10332 gids={50332, 9997, 3003} abi=armeabi-v7a
01-13 09:43:30.328 E/AndroidRuntime(18992): Process: com.aaronjwood.portauthority, PID: 18992
01-13 09:43:30.328 E/AndroidRuntime(18992): at com.aaronjwood.portauthority.a.a.a(Unknown Source)
01-13 09:43:30.328 E/AndroidRuntime(18992): at com.aaronjwood.portauthority.a.a.doInBackground(Unknown Source)
01-13 09:43:30.338 W/ActivityManager(2286): Force finishing activity com.aaronjwood.portauthority/.activity.MainActivity
01-13 09:43:30.648 I/WindowManager(2286): Screenshot max retries 4 of Token{ed04fb8 ActivityRecord{39cd021b u0 com.aaronjwood.portauthority/.activity.MainActivity t1400 f}} appWin=Window{1ff42e82 u0 com.aaronjwood.portauthority/com.aaronjwood.portauthority.activity.MainActivity} drawState=3
01-13 09:43:30.998 I/Timeline(2286): Timeline: Activity_windows_visible id: ActivityRecord{39cd021b u0 com.aaronjwood.portauthority/.activity.MainActivity t1400 f} time:44256044
01-13 09:43:31.908 I/ActivityManager(2286): Process com.aaronjwood.portauthority (pid 18992) has died
01-13 09:43:32.458 W/PackageManager(2483): Failure retrieving resources for com.aaronjwood.portauthority: Resource ID #0x0

Related to #5

https://github.com/dnsjava/dnsjava/blob/master/org/xbill/DNS/Type.java#L362

Should help reduce the amount of network traffic required for host scans and slightly reduce load on the users device.

How about reading service banners from connected sockets ?
Like: SSH-2.0-OpenSSH_6.7

Does the MAC lookup send the entire MAC address? If so, that may be a security risk. Only the first three octets are needed to identify the vendor.

The app crashes on scanning 192.168.1.1 OpenWRT router address.

Is it possible to add hostname support? It would be really useful, eg finding a specific computer that has a variable IP address

How about including the NIC database from http://download.lamatricexiste.info/nic.db.gz (with possibility to update it manually and/or automatically) and displaying the manufacturer of each network card in the scan list ?

Hello,
your app doesn't use the subnet mask to scan all the devices in the subnet, apparently it only scans 255 (gateway + ip subnet of device) hosts.
i got a /20 subnet so it should theoretically ping 4096 devices...

kind regards

Martin

https://github.com/aaronjwood/PortAuthority/blob/development/app/src/main/java/com/aaronjwood/portauthority/network/Wireless.java#L156

https://code.google.com/p/android/issues/detail?id=82477

Some users have requested for the ability to switch between a dark and light theme.

I run 1.4.0 from fdroid.

When i am not in a wifi network, but connected with mobile broadband the app throws an error.

Its something like "You are not connected to a network".

Which is wrong. You are connected to the mobile network.

"You are not connected to a wifi network" would be correct.

On Android 6, specifically Cyanogenmod 13, the mac address does not display on the main page.

Also, could you please add the MAC vendor to the main device info page?

For some reason Apple devices (MacBook and iPhone) cannot be detected.

EDIT: Seems like Port Authority detects these devices randomly. Once they are shown, once not.

Need to give a higher timeout to account for higher latency/congestion. Look into other optimizations.

Is it possible to build a feature that will test your download and upload speed?

I'm using galaxy s3 i9300 with CyanogenMod 11 and custom kernel,
The system shows message "app stopped working".

When you have longer lines the spacing gets ugly.

Especially the

 Hostnam
 e

And for the name it would be handy if the app breaks at - and . In this case after "static".

Is there a way to donate without using Google Play?

I want to scan my network for security check, but you app makes me hard to specify the port range.

If I need to check port 4567 only, I have to scroll start(1) and end(65535) to 4567,
which takes reaaaaaaaaaaaaaaaaaly looooooooooooong time to swipe my screen.

The f-droid version seems to be out of date.

It is on 1.7.2