VirtualBox – Not able to access guest from the host OS
Solution to the problem of not being able to access the guest OS from the host in VirtualBox is given with steps.
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interface
Failed to send 300 byte long packet over fallback interface
1.0 Error While configuring a server, the following errors were noted in the logfiles. send_packet: Operation not permitted dhclient.c:2386: Failed to send 300 byte long packet over fallback interface. DHCPREQUEST on eth0 port 67 (xid=0x1580bfd0) … 2.0 Solution There are two possibilities depending upon whether DHCP is being used for getting the network IP address …
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Alarm, sleep and High Resolution Timers
Alarm system call The alarm system call arranges for the SIGALRM signal to be sent to the calling process after s seconds. #include <unistd.h> unsigned int alarm (unsigned int s); Any previously set alarm is cleared. And if s is 0, no alarm is set. So, passing 0 as argument to alarm clears any previously …
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