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Download Rsync Rpm For Aix 7.1
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Jacque Waiden
Dec 30, 2023, 10:11:26 PM12/30/23
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Rsync is a fast and extraordinarily versatile file copying tool. It can copylocally, to/from another host over any remote shell, or to/from a remote rsyncdaemon. It offers a large number of options that control every aspect of itsbehavior and permit very flexible specification of the set of files to becopied. It is famous for its delta-transfer algorithm, which reduces theamount of data sent over the network by sending only the differences betweenthe source files and the existing files in the destination. Rsync is widelyused for backups and mirroring and as an improved copy command for everydayuse.
There are two different ways for rsync to contact a remote system: using aremote-shell program as the transport (such as ssh or rsh) or contacting anrsync daemon directly via TCP. The remote-shell transport is used whenever thesource or destination path contains a single colon (:) separator after a hostspecification. Contacting an rsync daemon directly happens when the source ordestination path contains a double colon (::) separator after a hostspecification, OR when an rsync:// URL is specified (see also the USINGRSYNC-DAEMON FEATURES VIA A REMOTE-SHELL CONNECTION section for anexception to this latter rule).
download rsync rpm for aix 7.1
Download https://t.co/JvoxTzsFYL
Rsync refers to the local side as the client and the remote side as the server.Don't confuse server with an rsync daemon. A daemon is always a server, but aserver can be either a daemon or a remote-shell spawned process.
Once installed, you can use rsync to any machine that you can access via aremote shell (as well as some that you can access using the rsync daemon-modeprotocol). For remote transfers, a modern rsync uses ssh for itscommunications, but it may have been configured to use a different remote shellby default, such as rsh or remsh.
This would transfer all files matching the pattern *.c from the currentdirectory to the directory src on the machine foo. If any of the files alreadyexist on the remote system then the rsync remote-update protocol is used toupdate the file by sending only the differences in the data. Note that theexpansion of wildcards on the command-line (*.c) into a list of files ishandled by the shell before it runs rsync and not by rsync itself (exactly thesame as all other Posix-style programs).
Under those circumstances, rsync will set the name of the destination's singleitem to the last element of the destination path. Keep in mind that it is bestto only use this idiom when copying a file and use the above trailing-slashidiom when copying a directory.
If you need a particular file to be transferred prior to another, eitherseparate the files into different rsync calls, or consider using--delay-updates (which doesn't affect the sorted transfer order, butdoes make the final file-updating phase happen much more rapidly).
Rsync takes steps to ensure that the file requests that are shared in atransfer are protected against various security issues. Most of the potentialproblems arise on the receiving side where rsync takes steps to ensure that thelist of files being transferred remains within the bounds of what wasrequested.
Toward this end, rsync 3.1.2 and later have aborted when a file list containsan absolute or relative path that tries to escape out of the top of thetransfer. Also, beginning with version 3.2.5, rsync does two more safetychecks of the file list to (1) ensure that no extra source arguments were addedinto the transfer other than those that the client requested and (2) ensurethat the file list obeys the exclude rules that were sent to the sender.
For those that don't yet have a 3.2.5 client rsync (or those that want to beextra careful), it is safest to do a copy into a dedicated destinationdirectory for the remote files when you don't trust the remote host. Forexample, instead of doing an rsync copy into your home directory:
CAUTION: it is not particularly safe to use rsync to copy files from acase-preserving filesystem to a case-ignoring filesystem. If you must performsuch a copy, you should either disable symlinks via --no-links or enable themunging of symlinks via --munge-links (and make sure you use theright local or remote option). This will prevent rsync from doing potentiallydangerous things if a symlink name overlaps with a file or directory. It doesnot, however, ensure that you get a full copy of all the files (since that maynot be possible when the names overlap). A potentially better solution is tolist all the source files and create a safe list of filenames that you pass tothe --files-from option. Any files that conflict in name would needto be copied to different destination directories using more than one copy.
While a copy of a case-ignoring filesystem to a case-ignoring filesystem canwork out fairly well, if no --delete-during or --delete-before option isactive, rsync can potentially update an existing file on the receiving sidewithout noticing that the upper-/lower-case of the filename should be changedto match the sender.
Really old versions of rsync (2.6.9 and before) only allowed specifying oneremote-source arg, so some people have instead relied on the remote-shellperforming space splitting to break up an arg into multiple paths. Suchunintuitive behavior is no longer supported by default (though you can requestit, as described below).
Starting in 3.2.4, filenames are passed to a remote shell in such a way as topreserve the characters you give it. Thus, if you ask for a file with spacesin the name, that's what the remote rsync looks for:
If you use scripts that have been written to manually apply extra quoting tothe remote rsync args (or to require remote arg splitting), you can ask rsyncto let your script handle the extra escaping. This is done by either addingthe --old-args option to the rsync runs in the script (which requiresa new rsync) or exporting RSYNC_OLD_ARGS=1 and RSYNC_PROTECT_ARGS=0(which works with old or new rsync versions).
It is also possible to use rsync without a remote shell as the transport. Inthis case you will directly connect to a remote rsync daemon, typically usingTCP port 873. (This obviously requires the daemon to be running on the remotesystem, so refer to the STARTING AN RSYNC DAEMON TO ACCEPT CONNECTIONSsection below for information on that.)
Some modules on the remote daemon may require authentication. If so, you willreceive a password prompt when you connect. You can avoid the password promptby setting the environment variable RSYNC_PASSWORD to the password youwant to use or using the --password-file option. This may be usefulwhen scripting rsync.
You may also establish a daemon connection using a program as a proxy bysetting the environment variable RSYNC_CONNECT_PROG to the commands youwish to run in place of making a direct socket connection. The string maycontain the escape "%H" to represent the hostname specified in the rsynccommand (so use "%%" if you need a single "%" in your string). For example:
It is sometimes useful to use various features of an rsync daemon (such asnamed modules) without actually allowing any new socket connections into asystem (other than what is already required to allow remote-shell access).Rsync supports connecting to a host using a remote shell and then spawning asingle-use "daemon" server that expects to read its config file in the home dirof the remote user. This can be useful if you want to encrypt a daemon-styletransfer's data, but since the daemon is started up fresh by the remote user,you may not be able to use features such as chroot or change the uid used bythe daemon. (For another way to encrypt a daemon transfer, consider using sshto tunnel a local port to a remote machine and configure a normal rsync daemonon that remote host to only allow connections from "localhost".)
From the user's perspective, a daemon transfer via a remote-shell connectionuses nearly the same command-line syntax as a normal rsync-daemon transfer,with the only exception being that you must explicitly set the remote shellprogram on the command-line with the --rsh=COMMAND option. (Setting theRSYNC_RSH in the environment will not turn on this functionality.) For example:
The output includes a list of compiled-in capabilities, a list ofoptimizations, the default list of checksum algorithms, the default list ofcompression algorithms, the default list of daemon auth digests, a link tothe rsync web site, and a few other items.
This option increases the amount of information you are given during thetransfer. By default, rsync works silently. A single -v will give youinformation about what files are being transferred and a brief summary atthe end. Two -v options will give you information on what files arebeing skipped and slightly more information at the end. More than two -voptions should only be used if you are debugging rsync.
The end-of-run summary tells you the number of bytes sent to the remotersync (which is the receiving side on a local copy), the number of bytesreceived from the remote host, and the average bytes per second of thetransferred data computed over the entire length of the rsync run. Thesecond line shows the total size (in bytes), which is the sum of all thefile sizes that rsync considered transferring. It also shows a "speedup"value, which is a ratio of the total file size divided by the sum of thesent and received bytes (which is really just a feel-good bigger-is-betternumber). Note that these byte values can be made more (or less)human-readable by using the --human-readable (or--no-human-readable) options.
In a modern rsync, the -v option is equivalent to the setting of groupsof --info and --debug options. You can choose to usethese newer options in addition to, or in place of using --verbose, asany fine-grained settings override the implied settings of -v. Both--info and --debug have a way to ask for help thattells you exactly what flags are set for each increase in verbosity.
This option was added to 3.1.0, so an older rsync on the server side mightreject your attempts at fine-grained control (if one or more flags neededto be send to the server and the server was too old to understand them).See also the "max verbosity" caveat above when dealing with a daemon.
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There are two different ways for rsync to contact a remote system: using aremote-shell program as the transport (such as ssh or rsh) or contacting anrsync daemon directly via TCP. The remote-shell transport is used whenever thesource or destination path contains a single colon (:) separator after a hostspecification. Contacting an rsync daemon directly happens when the source ordestination path contains a double colon (::) separator after a hostspecification, OR when an rsync:// URL is specified (see also the USINGRSYNC-DAEMON FEATURES VIA A REMOTE-SHELL CONNECTION section for anexception to this latter rule).
download rsync rpm for aix 7.1
Download https://t.co/JvoxTzsFYL
Rsync refers to the local side as the client and the remote side as the server.Don't confuse server with an rsync daemon. A daemon is always a server, but aserver can be either a daemon or a remote-shell spawned process.
Once installed, you can use rsync to any machine that you can access via aremote shell (as well as some that you can access using the rsync daemon-modeprotocol). For remote transfers, a modern rsync uses ssh for itscommunications, but it may have been configured to use a different remote shellby default, such as rsh or remsh.
This would transfer all files matching the pattern *.c from the currentdirectory to the directory src on the machine foo. If any of the files alreadyexist on the remote system then the rsync remote-update protocol is used toupdate the file by sending only the differences in the data. Note that theexpansion of wildcards on the command-line (*.c) into a list of files ishandled by the shell before it runs rsync and not by rsync itself (exactly thesame as all other Posix-style programs).
Under those circumstances, rsync will set the name of the destination's singleitem to the last element of the destination path. Keep in mind that it is bestto only use this idiom when copying a file and use the above trailing-slashidiom when copying a directory.
If you need a particular file to be transferred prior to another, eitherseparate the files into different rsync calls, or consider using--delay-updates (which doesn't affect the sorted transfer order, butdoes make the final file-updating phase happen much more rapidly).
Rsync takes steps to ensure that the file requests that are shared in atransfer are protected against various security issues. Most of the potentialproblems arise on the receiving side where rsync takes steps to ensure that thelist of files being transferred remains within the bounds of what wasrequested.
Toward this end, rsync 3.1.2 and later have aborted when a file list containsan absolute or relative path that tries to escape out of the top of thetransfer. Also, beginning with version 3.2.5, rsync does two more safetychecks of the file list to (1) ensure that no extra source arguments were addedinto the transfer other than those that the client requested and (2) ensurethat the file list obeys the exclude rules that were sent to the sender.
For those that don't yet have a 3.2.5 client rsync (or those that want to beextra careful), it is safest to do a copy into a dedicated destinationdirectory for the remote files when you don't trust the remote host. Forexample, instead of doing an rsync copy into your home directory:
CAUTION: it is not particularly safe to use rsync to copy files from acase-preserving filesystem to a case-ignoring filesystem. If you must performsuch a copy, you should either disable symlinks via --no-links or enable themunging of symlinks via --munge-links (and make sure you use theright local or remote option). This will prevent rsync from doing potentiallydangerous things if a symlink name overlaps with a file or directory. It doesnot, however, ensure that you get a full copy of all the files (since that maynot be possible when the names overlap). A potentially better solution is tolist all the source files and create a safe list of filenames that you pass tothe --files-from option. Any files that conflict in name would needto be copied to different destination directories using more than one copy.
While a copy of a case-ignoring filesystem to a case-ignoring filesystem canwork out fairly well, if no --delete-during or --delete-before option isactive, rsync can potentially update an existing file on the receiving sidewithout noticing that the upper-/lower-case of the filename should be changedto match the sender.
Really old versions of rsync (2.6.9 and before) only allowed specifying oneremote-source arg, so some people have instead relied on the remote-shellperforming space splitting to break up an arg into multiple paths. Suchunintuitive behavior is no longer supported by default (though you can requestit, as described below).
Starting in 3.2.4, filenames are passed to a remote shell in such a way as topreserve the characters you give it. Thus, if you ask for a file with spacesin the name, that's what the remote rsync looks for:
If you use scripts that have been written to manually apply extra quoting tothe remote rsync args (or to require remote arg splitting), you can ask rsyncto let your script handle the extra escaping. This is done by either addingthe --old-args option to the rsync runs in the script (which requiresa new rsync) or exporting RSYNC_OLD_ARGS=1 and RSYNC_PROTECT_ARGS=0(which works with old or new rsync versions).
It is also possible to use rsync without a remote shell as the transport. Inthis case you will directly connect to a remote rsync daemon, typically usingTCP port 873. (This obviously requires the daemon to be running on the remotesystem, so refer to the STARTING AN RSYNC DAEMON TO ACCEPT CONNECTIONSsection below for information on that.)
Some modules on the remote daemon may require authentication. If so, you willreceive a password prompt when you connect. You can avoid the password promptby setting the environment variable RSYNC_PASSWORD to the password youwant to use or using the --password-file option. This may be usefulwhen scripting rsync.
You may also establish a daemon connection using a program as a proxy bysetting the environment variable RSYNC_CONNECT_PROG to the commands youwish to run in place of making a direct socket connection. The string maycontain the escape "%H" to represent the hostname specified in the rsynccommand (so use "%%" if you need a single "%" in your string). For example:
It is sometimes useful to use various features of an rsync daemon (such asnamed modules) without actually allowing any new socket connections into asystem (other than what is already required to allow remote-shell access).Rsync supports connecting to a host using a remote shell and then spawning asingle-use "daemon" server that expects to read its config file in the home dirof the remote user. This can be useful if you want to encrypt a daemon-styletransfer's data, but since the daemon is started up fresh by the remote user,you may not be able to use features such as chroot or change the uid used bythe daemon. (For another way to encrypt a daemon transfer, consider using sshto tunnel a local port to a remote machine and configure a normal rsync daemonon that remote host to only allow connections from "localhost".)
From the user's perspective, a daemon transfer via a remote-shell connectionuses nearly the same command-line syntax as a normal rsync-daemon transfer,with the only exception being that you must explicitly set the remote shellprogram on the command-line with the --rsh=COMMAND option. (Setting theRSYNC_RSH in the environment will not turn on this functionality.) For example:
The output includes a list of compiled-in capabilities, a list ofoptimizations, the default list of checksum algorithms, the default list ofcompression algorithms, the default list of daemon auth digests, a link tothe rsync web site, and a few other items.
This option increases the amount of information you are given during thetransfer. By default, rsync works silently. A single -v will give youinformation about what files are being transferred and a brief summary atthe end. Two -v options will give you information on what files arebeing skipped and slightly more information at the end. More than two -voptions should only be used if you are debugging rsync.
The end-of-run summary tells you the number of bytes sent to the remotersync (which is the receiving side on a local copy), the number of bytesreceived from the remote host, and the average bytes per second of thetransferred data computed over the entire length of the rsync run. Thesecond line shows the total size (in bytes), which is the sum of all thefile sizes that rsync considered transferring. It also shows a "speedup"value, which is a ratio of the total file size divided by the sum of thesent and received bytes (which is really just a feel-good bigger-is-betternumber). Note that these byte values can be made more (or less)human-readable by using the --human-readable (or--no-human-readable) options.
In a modern rsync, the -v option is equivalent to the setting of groupsof --info and --debug options. You can choose to usethese newer options in addition to, or in place of using --verbose, asany fine-grained settings override the implied settings of -v. Both--info and --debug have a way to ask for help thattells you exactly what flags are set for each increase in verbosity.
This option was added to 3.1.0, so an older rsync on the server side mightreject your attempts at fine-grained control (if one or more flags neededto be send to the server and the server was too old to understand them).See also the "max verbosity" caveat above when dealing with a daemon.
35fe9a5643
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