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Jumat, 05 Juni 2020

Poorman PostgresSQL master-master replication

. Jumat, 05 Juni 2020 .

https://medium.com/@haztaneo/replikasi-database-postgresql-menggunakan-symmetricds-2a47adbefe24


https://www.symmetricds.org/

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Senin, 25 Mei 2020

How to Upgrade PostgreSQL10 to PostgreSQL11 With Zero Downtime

. Senin, 25 Mei 2020 .

https://severalnines.com/database-blog/how-upgrade-postgresql10-postgresql11-zero-downtime?fbclid=IwAR2dLzpr0haE3V2XO0NxaWVuAB2yitmiP7hdWsDvJmnz3-gF861XDxhEXNE

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A tale of password authentication methods in PostgreSQL

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https://www.2ndquadrant.com/en/blog/password-authentication-methods-in-postgresql/?utm_campaign=Blog%20post%20promo&utm_content=128691644&utm_medium=social&utm_source=facebook&hss_channel=fbp-238242826207484

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Kamis, 14 Mei 2020

Writing Android Apps In C, No Java Required

. Kamis, 14 Mei 2020 .

Older Android devices can be had for a song, and in many cases are still packing considerable computational power. With built in networking, a battery, and a big touch screen, they could easily take the place of a Raspberry Pi and external display in many applications. As it so happens, Google has made it very easy to develop your own Android software. There’s only one problem: you’ve got to do it in Java.
Looking to get away from all that bloat and overhead, [CNLohr] set out to see what it would take to get 100% C code running on an Android device. After collecting information and resources from the deepest and darkest corners of the Internet, he found out that the process actually wasn’t that bad. He’s crafted a makefile which can be used to get your own C program up and running in seconds.
We mean that literally. As demonstrated in the video after the break, [CNLohr] is able to compile, upload, and run a C Android program in less than two seconds with a single command. This rapid development cycle allows you to spend more time on actually getting work done, as you can iterate through versions of your code almost as quickly as if you were running them on your local machine.
[CNLohr] says you’ll still need to have Google’s Android Studio installed, so it’s not as if this is some clean room implementation. But once it’s installed, you can just call everything from his makefile and never have to interact with it directly. Even if you don’t have any problem with the official Android development tools, there’s certainly something to be said for being able to write a “Hello World” that doesn’t clock in at multiple-megabytes.





https://hackaday.com/2020/05/13/writing-android-apps-in-c-no-java-required/

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Open Design: Freeware tools for creatives

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https://uxplanet.org/open-design-freeware-tools-for-designers-f7bdde99f2e0

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Boden Cross-Platform Framework

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Create purely native cross-platform user experiences with Boden

Boden empowers you to create native mobile cross-platform applications from a single codebase. It uses native widgets that match the look and feel users expect from their platform.

C++ Android / IOS Framework

https://www.boden.io/

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Kamis, 16 Januari 2020

resolusi layar

. Kamis, 16 Januari 2020 .

1600x1200
1600x900
1440x900
1400x1050
1366x768
1360x1024
1360x768
1280x1024
1280x960
1280x800
1280x768
1280x720
1152x864
1024x768
800x600

http://divby0.blogspot.com/2011/06/howto-get-xorgconf-to-work-w-1600x1200.html


{"command":"readcard", "type":"all"}


==================================================

# 1360x768 59.80 Hz (CVT) hsync: 47.72 kHz; pclk: 84.75 MHz
Modeline "1360x768_60.00"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
# 1280x1024 59.89 Hz (CVT 1.31M4) hsync: 63.67 kHz; pclk: 109.00 MHz
Modeline "1280x1024_60.00"  109.00  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
# 1280x960 59.94 Hz (CVT 1.23M3) hsync: 59.70 kHz; pclk: 101.25 MHz
Modeline "1280x960_60.00"  101.25  1280 1360 1488 1696  960 963 967 996 -hsync +vsync
# 1280x800 59.81 Hz (CVT 1.02MA) hsync: 49.70 kHz; pclk: 83.50 MHz
Modeline "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync
# 1280x768 59.87 Hz (CVT) hsync: 47.78 kHz; pclk: 79.50 MHz
Modeline "1280x768_60.00"   79.50  1280 1344 1472 1664  768 771 781 798 -hsync +vsync
# 1280x720 59.86 Hz (CVT 0.92M9) hsync: 44.77 kHz; pclk: 74.50 MHz
Modeline "1280x720_60.00"   74.50  1280 1344 1472 1664  720 723 728 748 -hsync +vsync
# 1152x864 59.96 Hz (CVT 1.00M3) hsync: 53.78 kHz; pclk: 81.75 MHz
Modeline "1152x864_60.00"   81.75  1152 1216 1336 1520  864 867 871 897 -hsync +vsync
# 1024x768 59.92 Hz (CVT 0.79M3) hsync: 47.82 kHz; pclk: 63.50 MHz
Modeline "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync
# 800x600 59.86 Hz (CVT 0.48M3) hsync: 37.35 kHz; pclk: 38.25 MHz
Modeline "800x600_60.00"   38.25  800 832 912 1024  600 603 607 624 -hsync +vsync

==================================================

 #    4:3 aspect ratio resolutions: 640×480, 800×600, 960×720, 1024×768, 1280×960, 1400×1050, 1440×1080, 1600×1200, 1856×1392, 1920×1440, and 2048×1536.
#    16:10 aspect ratio resolutions: 1280×800, 1440×900, 1680×1050, 1920×1200, and 2560×1600.
#    16:9 aspect ratio resolutions: 1024×576, 1152×648, 1280×720 (HD), 1366×768, 1600×900, 1920×1080 (FHD), 2560×1440 (QHD), 3840×2160 (4K), and 7680 x 4320 (8K).




# 640×480,
# 800×600,
# 960×720,
# 1024×768,
# 1280×960,
# 1400×1050,
# 1440×1080,
# 1600×1200,
# 1856×1392,
# 1920×1440,
# 2048×1536

# 1280×800,
# 1440×900,
# 1680×1050,
# 1920×1200,
# 2560×1600.



# 1024×576,
# 1152×648,
# 1280×720 (HD),
# 1366×768,
# 1600×900,
# 1920×1080 (FHD),
# 2560×1440 (QHD),
# 3840×2160 (4K),
# 7680 x 4320 (8K).



xrandr --newmode  "1600x1200_virt"  161.00  1600 1712 1880 2160  1200 1203 1207 1245 -hsync +vsync
xrandr --newmode  "1600x900_virt"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync
xrandr --newmode  "1440x900_virt"  106.50  1440 1528 1672 1904  900 903 909 934 -hsync +vsync
xrandr --newmode  "1400x1050_virt"  121.75  1400 1488 1632 1864  1050 1053 1057 1089 -hsync +vsync
xrandr --newmode  "1368x768_virt"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync
xrandr --newmode  "1360x1024_virt"  115.00  1360 1448 1584 1808  1024 1027 1037 1063 -hsync +vsync
xrandr --newmode  "1360x768_virt"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
xrandr --newmode  "1280x1024_virt"  109.00  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
xrandr --newmode  "1280x960_virt"  101.25  1280 1360 1488 1696  960 963 967 996 -hsync +vsync
xrandr --newmode  "1280x800_virt"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync
xrandr --newmode  "1280x768_virt"   79.50  1280 1344 1472 1664  768 771 781 798 -hsync +vsync
xrandr --newmode  "1280x720_virt"   74.50  1280 1344 1472 1664  720 723 728 748 -hsync +vsync
xrandr --newmode  "1152x864_virt"   81.75  1152 1216 1336 1520  864 867 871 897 -hsync +vsync
xrandr --newmode  "1024x768_virt"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync
xrandr --newmode  "800x600_virt"   38.25  800 832 912 1024  600 603 607 624 -hsync +vsync



xrandr --addmode DVI-0 "1600x1200_virt"
xrandr --addmode DVI-0 "1600x900_virt"
xrandr --addmode DVI-0 "1440x900_virt"
xrandr --addmode DVI-0 "1368x768_virt"
xrandr --addmode DVI-0 "1360x1024_virt"
xrandr --addmode DVI-0 "1360x768_virt"
xrandr --addmode DVI-0 "1280x1024_virt"
xrandr --addmode DVI-0 "1280x960_virt"
xrandr --addmode DVI-0 "1280x800_virt"
xrandr --addmode DVI-0 "1280x768_virt"
xrandr --addmode DVI-0 "1280x720_virt"
xrandr --addmode DVI-0 "1152x864_virt"
xrandr --addmode DVI-0 "1024x768_virt"
xrandr --addmode DVI-0 "800x600_virt"


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