Since update to 2.0, I'm not able to print with a local server, as cups client (either from command-line, or from gnome printing subsystem) forces connection to localhost, despite an explicit ServerName directive in ~/.cups/client.conf:

[guillaume@beria cauldron]$ strace lpstat -a
...

open("/home/guillaume/.cups/client.conf", O_RDONLY) = 5
fcntl(5, F_GETFD)                       = 0
fcntl(5, F_SETFD, FD_CLOEXEC)           = 0
read(5, "ServerName 128.93.58.1\n#ServerNa"..., 4096) = 146
read(5, "", 4096)                       = 0
close(5)                                = 0
socket(PF_INET6, SOCK_STREAM, IPPROTO_IP) = 5
setsockopt(5, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
setsockopt(5, SOL_SOCKET, SO_REUSEPORT, [1], 4) = 0
setsockopt(5, SOL_TCP, TCP_NODELAY, [1], 4) = 0
fcntl(5, F_SETFD, FD_CLOEXEC)           = 0
fcntl(5, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(5, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(5, {sa_family=AF_INET6, sin6_port=htons(631), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 EINPROGRESS (Operation now in progress) <- first localhost connection attempt, IPv6
fcntl(5, F_SETFL, O_RDWR)               = 0
poll([{fd=5, events=POLLIN|POLLOUT}], 1, 250) = 1 ([{fd=5, revents=POLLIN|POLLOUT|POLLERR|POLLHUP}])
getpeername(5, 0x7fff5393dea0, [256])   = -1 ENOTCONN (Transport endpoint is not connected)
close(5)                                = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 5
setsockopt(5, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
setsockopt(5, SOL_SOCKET, SO_REUSEPORT, [1], 4) = 0
setsockopt(5, SOL_TCP, TCP_NODELAY, [1], 4) = 0
fcntl(5, F_SETFD, FD_CLOEXEC)           = 0
fcntl(5, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(5, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(5, {sa_family=AF_INET, sin_port=htons(631), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 EINPROGRESS (Operation now in progress) <- second localhost connection attempt, IPv4
fcntl(5, F_SETFL, O_RDWR)               = 0
poll([{fd=5, events=POLLIN|POLLOUT}], 1, 250) = 1 ([{fd=5, revents=POLLIN|POLLOUT|POLLERR|POLLHUP}])
getpeername(5, 0x7fff5393dea0, [256])   = -1 ENOTCONN (Transport endpoint is not connected)
close(5)                                = 0
close(-1)                               = -1 EBADF (Bad file descriptor)

Same thing with an explicit server option:
[guillaume@beria cauldron]$ LC_ALL=C lpstat -a -h 128.93.58.1
lpstat: Bad file descriptor



Reproducible: 

Steps to Reproduce: