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--- software:linux:opensuse [2020/12/26 19:25] – [systemd timers can be used to perform the same kinds of tasks as the cron] superwizard
+++ software:linux:opensuse [2021/03/05 18:28] (current) – superwizard
@@ Line 1: / Line 1: @@
+====== OpenSuse ======
+------------------------------------------------------------------------------------------------------------------------------------------------\\
+====== Configuring firewall ports ======
+<WRAP center round box >
+**Command line open ports in firewall**
+sudo firewall-cmd --zone=public --add-port=5000/tcp
+https://forums.opensuse.org/showthread.php/533831-Opening-ports-in-the-new-YaST2-Firewall
+</WRAP>
+<WRAP center round box >
+**Use Yast to configure open ports in firewall or turn firewall off**
+    * what ports are open using vsftpd
+      * firewall-cmd --permanent --service=vsftpd --get-ports
+        * 21/tcp 30000-30100/tcp
+    * what ports are open using Samba
+      * firewall-cmd --permanent --service=samba --get-ports
+        * 137/udp 138/udp 139/tcp 445/tcp
+    * Reference: man firewall-cmd
+</WRAP>
+====== Hyper-v Video Resolution ======
+<WRAP center round box >
+-01-23
+Works on grub
+Set resolution
+Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT (line is highlight on image) and add video=hyperv_fb:[the resolution you need]
+ex:- video=hyperv_fb:1200×700
+you may need to change the above value several time to achieve better screen size. 1200×700 is the value which is worked on my 1366×768 resolution windows server.
+[[https://www.tectut.com/wp-content/uploads/2015/02/1.png]]
+[[https://www.tectut.com/2015/02/changing-linux-screen-resolution-in-hyper-v-virtual-machine/]]
+</WRAP>
+====== Hyper-V Synthetic Video Frame Buffer Driver ======
+<WRAP center round box >
+This is the driver for the Hyper-V Synthetic Video, which supports
+ * screen resolution up to Full HD 1920x1080 with 32 bit color on Windows
+ * Server 2012, and 1600x1200 with 16 bit color on Windows Server 2008 R2
+ * or earlier.
+[[https://github.com/torvalds/linux/blob/master/drivers/video/fbdev/hyperv_fb.c]]
+</WRAP>
+====== Configures video settings for virtual machines PowerShell ======
+Set-VMVideo
+Module:
+    Hyper-V
+Configures video settings for virtual machines.
+Syntax
+PowerShell
+Set-VMVideo
+   [-CimSession <CimSession[]>]
+   [-ComputerName <String[]>]
+   [-Credential <PSCredential[]>]
+   [-VMName] <String[]>
+   [[-ResolutionType] <ResolutionType>]
+   [[-HorizontalResolution] <UInt16>]
+   [[-VerticalResolution] <UInt16>]
+   [-Passthru]
+   [-WhatIf]
+   [-Confirm]
+   [<CommonParameters>]
 ====== Resilio Sync ======
@@ Line 48: / Line 135: @@
     echo 0 > /sys/devices/virtual/net/br0/bridge/multicast_snooping
-</WRAP>
 From <https://unix.stackexchange.com/questions/272146/packets-not-moving-through-linux-ethernet-bridge>
 From <https://unix.stackexchange.com/questions/272146/packets-not-moving-through-linux-ethernet-bridge>
+</WRAP>
 <WRAP center round box >
@@ Line 65: / Line 152: @@
   post-up ( echo 0 > /sys/class/net/$IFACE/bridge/multicast_snooping )
-</WRAP>
 From <https://pve.proxmox.com/wiki/Multicast_notes>
+</WRAP>
 <WRAP center round box >
@@ Line 81: / Line 168: @@
-</WRAP>
 From <http://www.microhowto.info/howto/bridge_traffic_between_two_or_more_ethernet_interfaces_on_linux.html>
+</WRAP>
 <WRAP center round box >
@@ Line 95: / Line 182: @@
     ip link set dev eth0 down
-</WRAP>
 From <https://tldp.org/HOWTO/Linux+IPv6-HOWTO/ch05s02.html>
+</WRAP>
 <WRAP center round box >
@@ Line 105: / Line 192: @@
    ip link set [interface] promisc on
-</WRAP>
 From: https://www.thegeekdiary.com/how-to-configure-interface-in-promiscuous-mode-in-centos-rhel/
+</WRAP>
 <WRAP center round box >
+{{ :software:linux:tcpdump.pdf |tcpdump Cheat Sheet}}
 **D.3. tcpdump: Capturing with “tcpdump” for viewing with Wireshark**\\
 It’s often more useful to capture packets using tcpdump rather than wireshark. For example, you might want to do a remote capture and either don’t have GUI access or don’t have Wireshark installed on the remote machine.
@@ Line 135: / Line 225: @@
+<WRAP center round box >
 http://www.rsyslog.com/
@@ Line 141: / Line 232: @@
 http://en.wikipedia.org/wiki/Rsyslog
+</WRAP>
 === Properties ===
+<WRAP center round box >
 http://www.rsyslog.com/doc/property_replacer.html
+</WRAP>
 === Changes to setup a log for mediatrix ===
@@ Line 529: / Line 625: @@
 [[fedoraproject.org wiki Systemd>>http://fedoraproject.org/wiki/Systemd]]
-= Systemd_Cheatsheet =
+**Systemd_Cheatsheet**
 From: http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet
@@ Line 559: / Line 656: @@
 From <https://opensource.com/article/20/7/systemd-timers?utm_medium=Email&utm_campaign=weekly&sc_cid=7013a000002glehAAA>
+</WRAP>
 ====== Graphic Cards ======
@@ Line 567: / Line 667: @@
 openSUSE Graphic Card Practical Theory Guide for Users
 Look for occurrences of:
@@ Line 576: / Line 675: @@
 From: <https://forums.opensuse.org/showthread.php/430150-openSUSE-Graphic-Card-Practical-Theory-Guide-for-Users?p=2157771#post2157771>
 </WRAP>