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The question-mark-in-a-box is the Unicode replacement character. The Linux console will print that in two cases: the character is not in the currently-loaded font (512 glyphs), or the display-controls feature has been enabled in the console. The latter has been in the kernel quite a while, as seen in this link to console.c in 2.2.26, which has the ...


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mosh uses the locale environment supported by ssh. While mosh apparently has no verbose- or debug-options, you can tell it what ssh command to use when connecting and by adding a -vvv option can have ssh show what locale variables it sends. For example, starting with mosh -ssh='ssh -vvv' root@server you might see debug1: Sending env LC_ALL = C ...


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I you are running systemd, you can query all service status with: systemctl list-units


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This discusses my nosh toolset specifically, but some of the concepts apply to other members of the daemontools family. You might want to tell the Gentoo people that their Process Supervision wiki article is woefully outdated and incomplete. Service status for humans Obtaining service status in human-readable form is of course done with the svstat, ...


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Most filesystems have unique UUIDs and have labels which you can set to a distinctive values. These allow you to refer to the volume containing the filesystem through /dev/disk/by-uuid or /dev/disk/by-label. Other types of volumes (RAID, LVM, etc.) generally have a name as well. RAID and LVM volumes are assembled based on unique identifiers in the physical ...


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Finally I have figured out what the problem is! It is most likely because of an IP Conflict ._. Sorry to bother you guys. After I have switched from fix IP to DHCP, no packets loss in ping anymore. Thanks guys. Lesson learned.


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I also have an N2600 with similar symptoms. But for me, anything after 3.16 would see this problem, but 3.16 and below was fine. I've found that acpi=off gets stuff working again. Clearly there is some kind of issues with timers or CPU sleep states that needs to be addressed.



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