Check if a port of a server is active, measure response time
is_up()
checks if a web server is up.
Usage
ping_port(
destination,
port = 80L,
continuous = FALSE,
verbose = continuous,
count = 3L,
timeout = 1
)
is_up(
destination,
port = 80,
timeout = 0.5,
fail_on_dns_error = FALSE,
check_online = TRUE
)
Arguments
- destination
Host name or IP address.
- port
Port.
- continuous
Logical, whether to keep pinging until the user interrupts.
- verbose
Whether to print progress on the screen while pinging.
- count
Number of pings to perform.
- timeout
Timeout, in seconds. How long to wait for a ping to succeed.
- fail_on_dns_error
If
TRUE
thenis_up()
fails if the DNS resolution fails. Otherwise it will returnFALSE
.- check_online
Whether to check first if the computer is online. Otherwise it is possible that the computer is behind a proxy, that hijacks the HTTP connection to
destination
.