Krython je interaktivní aplikace určená k výuce základů programování v jazyce Python verze 3. Její název je složeninou slova Python a jména androida z britského sci-fi sitcomu Červený trpaslík - Kryton. Kryton tě provede všemi úkoly. Až se ti podaří je splnit, získáš diplom.
Byla vydána nová stabilní verze 4.1 (4.1.2369.11) webového prohlížeče Vivaldi (Wikipedie). Přehled novinek v příspěvku na blogu. Zdůrazněn je nový typ seskupování listů s názvem Akordeon (YouTube) a Řetězce příkazů (YouTube). Nejnovější Vivaldi je postaven na Chromiu 92.0.4515.126.
Byla vydána nová verze 21.7 open source firewallové a routovací platformy OPNsense (Wikipedie). Jedná se o fork pfSense postavený na HardenedBSD, od příští verze 22.1 na FreeBSD. Kódový název OPNsense 21.7 je Noble Nightingale. Přehled novinek v příspěvku na blogu.
Orbiter Space Flight Simulator (Wikipedie), počítačový simulátor vesmírných letů, je nově open source software. Zdrojové kódy jsou k dispozici na GitHubu pod licencí MIT.
Byla vydána nová verze 2.4.0 svobodné implementace protokolu RDP (Remote Desktop Protocol) a RDP klienta FreeRDP. Přehled novinek v Changelogu nebo v GitHub Milestones. Zdůraznit lze vícevláknové dekódování. Opraveny byly dvě bezpečnostní chyby.
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Po půl roce od vydání verze 14.0 byla vydána nová verze 15.0 zvukového serveru PulseAudio (Wikipedie). Přehled novinek v poznámkách k vydání. V některých distribucích, například Fedora 34, byl zvukový server PulseAudio nahrazen novým multimediálním serverem PipeWire (Wikipedie).
Konsorcium Linux Foundation představilo open source projekt Pyrrha, původně Prometeo. Jedná se o IoT platformu pro monitorování a ochranu života a zdraví hasičů. Představení na YouTube. Zdrojové kódy i návrhy a firmwary hardwarových senzorů jsou k dispozici na GitHubu.
Apache Cassandra (Wikipedie), tj. open source NoSQL distribuovaná databáze, byla po šesti letech vydána v nové major verzi 4.0. Přehled novinek v příspěvku na blogu a na YouTube.
WebHero je hra pro webové nadšence. V každém levelu čeká jeden úkol spojený s webovými technologiemi.
root@mail:~# tail -f /var/log/syslog Nov 12 11:23:14 mail named[16894]: client 68.2.181.144#57619: query (cache) 'sema.cz/ANY/IN' deniedTie zaznamy sa stale opakuju
root@mail:~# tail -f /var/log/query.log client 68.2.181.144#26821: query: sema.cz IN ANY +E (192.168.0.31)Chcem len vediet ci to mam dobre zabezpecene, alebo nieco mi tam este chyba. Na nete som asi nieco ako open dns, ale to moc nechcem. Konfiguraky: named.conf
AbcLinuxu.cz
ITBiz.cz
HDmag.cz
AbcPráce.cz
root@mail:~# cat /etc/bind/named.conf
include "/etc/bind/named.conf.options";
include "/etc/bind/named.conf.local";
include "/etc/bind/named.conf.default-zones";
include "/etc/bind/rndc.key";
controls {
inet 127.0.0.1 allow { localhost; } keys { "rndc-key"; };
};
trusted-keys {
dlv.isc.org. 257 3 5 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
};
named.conf.local
root@mail:~# cat /etc/bind/named.conf.local
logging {
channel query.log {
file "/var/log/query.log";
// Set the severity to dynamic to see all the debug messages.
severity debug 3;
};
category queries { query.log; };
};
+ Zonove zaznamy
named.conf.options
root@mail:~# cat /etc/bind/named.conf.options
acl "allowed" {
192.168.5.0/24;
192.168.10.0/24;
localhost;
localnets;
};
options {
directory "/var/cache/bind";
allow-query { any; };
allow-recursion { allowed; };
allow-query-cache { allowed; };
forwarders {
8.8.8.8;
8.8.4.4;
195.210.29.64;
};
rate-limit {
responses-per-second 5;
};
forward only;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;
also-notify {};
fetch-glue no;
};
root@mail:~# time tail -f /var/log/query.log client 221.229.162.197#30569: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#30569: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#6948: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#6948: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#1216: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#1216: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#45720: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#45720: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#11571: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#11571: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#1768: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#1768: drop REFUSED response to 221.229.162.0/24 client 80.250.115.133#22297: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#22297: drop REFUSED response to 80.250.115.0/24 client 80.250.115.133#58805: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#58805: slip REFUSED response to 80.250.115.0/24 client 221.229.162.197#17687: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#17687: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#3585: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#3585: drop REFUSED response to 221.229.162.0/24 client 80.250.115.133#16553: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#16553: drop REFUSED response to 80.250.115.0/24 client 221.229.162.197#9780: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#9780: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#49030: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#49030: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#4523: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#4523: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#63228: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#63228: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#29943: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#29943: slip REFUSED response to 221.229.162.0/24 client 80.250.115.133#2142: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#2142: slip REFUSED response to 80.250.115.0/24 client 221.229.162.197#12853: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#12853: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#18454: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#18454: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#12803: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#12803: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#11976: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#11976: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#42548: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#42548: drop REFUSED response to 221.229.162.0/24 client 80.250.115.133#27375: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#27375: drop REFUSED response to 80.250.115.0/24 client 221.229.162.197#17555: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#17555: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#46601: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#46601: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#51315: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#51315: slip REFUSED response to 221.229.162.0/24 client 80.250.115.133#48420: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#48420: slip REFUSED response to 80.250.115.0/24 client 221.229.162.197#33798: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#33798: drop REFUSED response to 221.229.162.0/24 client 80.250.115.133#3435: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#3435: drop REFUSED response to 80.250.115.0/24 client 221.229.162.197#58059: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#58059: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#62829: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#62829: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#25584: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#25584: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#32870: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#32870: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#64117: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#64117: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#21581: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#21581: drop REFUSED response to 221.229.162.0/24 client 80.250.115.133#48471: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#48471: slip REFUSED response to 80.250.115.0/24 client 221.229.162.197#39125: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#39125: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#64811: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#64811: drop REFUSED response to 221.229.162.0/24 client 80.250.115.133#50582: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#50582: drop REFUSED response to 80.250.115.0/24 client 221.229.162.197#2589: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#2589: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#42520: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#42520: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#14914: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#14914: slip REFUSED response to 221.229.162.0/24 client 80.250.115.133#19227: query: wradish.com IN ANY +E (192.168.0.31) client 80.250.115.133#19227: slip REFUSED response to 80.250.115.0/24 client 221.229.162.197#6794: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#6794: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#57811: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#57811: slip REFUSED response to 221.229.162.0/24 client 221.229.162.197#46059: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#46059: drop REFUSED response to 221.229.162.0/24 client 221.229.162.197#7354: query: wradish.com IN ANY +E (192.168.0.31) client 221.229.162.197#7354: slip REFUSED response to 221.229.162.0/24 real 0m1.260s user 0m0.004s sys 0m0.000s
Nevidím tam nikde DNSSEC, takže to máš naprosto nezabezpečené.
Tiskni
Sdílej:
