![]() Can be used multiple times to print additional information. v : Print debug information, particularly helpful when debugging an authentication problem. localhost:~$ ssh -v -p 22 -C remoteserver The following ssh example command uses common parameters often seen when connecting to a remote SSH server. First The Basics Breaking down the SSH Command Line Take a look at Proxy Jump -J and reverse dynamic forwarding -R. Block SSH Brute Force Attempts with iptablesĮven if you are an experienced *nix guru there are a couple of examples further down that are only available in later versions of OpenSSH. Bouncing through jump hosts with SSH and -JĢ1. Mount remote SSH as local folder with SSHFSĢ0. Copy files remotely with rsync and SSHġ5. the 'good old days' of CP/M, DOS, etc.12. You're not affected by the above issues if you're living +30 years in the past when all we had was plain ASCII and filesystem metadata was unknown. Always let the client do the job since only then all the 'translation layers' and mappings will work. TL DR: Don't fiddle around with files directly in the filesystem of a NAS. Just check the forums here and anywhere else - but usually the culprit will not be identified but people will report that brutal workarounds like chmod -R, deleting all ACLs or forcing stupid ASCII mode by eliminating all special chars and umlauts in all files and directory names 'solved the problem'. I bet none of 'usual NAS users' are aware of any of these three issues (since my day job includes helping customers to recover from such mess - and the customers are the IT departments of sometimes even large companies) but of course users constantly run into this mess. If you access your data on the server these mechanisms are not in place -> permission and ACL troubles afterwards highly likely. Filesharing Daemons (with appropriate settings) take care of this when dealing with client accesses (mapping access restrictions to the way it's possible in Linux, sometimes even faking some modes). Permission concepts: Client OS might have different permissions concepts compared to Linux.If you have a mismatch between different shares and copy stuff on the server you'll loose all of this metadata for sure. How these client attributes are stored solely depends on either share or daemon settings. When transferring files via SMB or AFP then filesharing daemons on the server again have to translate client features into server features (usual POSIX filesystems used by OMV provide neither support for ADS nor for Resource Forks or macOS' own Extended Attributes). Filesystem metadata: Windows uses so called 'Alternate Data Streams' (ADS), macOS used Resource Forks that are now part of Extended Attributes.If you have different share settings a move or copy directly on the server will end in encoding mess. MacOS wants to use UTF-8 decomposed instead so again a mapping usually happens. Windows might use UTF-16/UCS-2 while the server is set to UTF-8 precomposed. Filesharing daemons like Samba or Netatalk know about client and server side encodings and translate if necessary. Encodings: Clients (Windows, macOS, Linux, other Unices) might have a different idea about encodings compared to the server side (the filesharing daemon and the filesystem).I was talking about different things since we're talking about the NAS use case here.
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