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annotate MULTI @ 1861:2b3a8026a6ce

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Add re-exec for server This allows ASLR to re-randomize the address space for every connection, preventing some vulnerabilities from being exploitable by repeated probing. Overhead (memory and time) is yet to be confirmed. At present this is only enabled on Linux. Other BSD platforms with fexecve() would probably also work though have not been tested.
author Matt Johnston <matt@ucc.asn.au>
date Sun, 30 Jan 2022 10:14:56 +0800
parents 93e04b9ff676
children
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1 Multi-binary compilation
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2 ========================
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4 To compile for systems without much space (floppy distributions etc), you
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5 can create a single binary. This will save disk space by avoiding repeated
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6 code between the various parts.
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7 If you are familiar with "busybox", it's the same principle.
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9 To compile the multi-binary, first "make clean" (if you've compiled
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10 previously), then
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12 make PROGRAMS="programs you want here" MULTI=1
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14 To use the binary, symlink it from the desired executable:
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16 ln -s dropbearmulti dropbear
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17 ln -s dropbearmulti dbclient
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18 etc
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20 then execute as normal:
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22 ./dropbear <options here>