https://bugs.openldap.org/show_bug.cgi?id=10196
Issue ID: 10196
Summary: ldapsearch with -h localhost resulting dns lookup
Product: OpenLDAP
Version: 2.4.46
Hardware: x86_64
OS: Linux
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: client tools
Assignee: b...@openldap.org
Reporter: mca100...@gmail.com
Target Milestone: ---
ldapsearch -h localhost -p 16611 xxxxxxxx
socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_IP) = 3
setsockopt(3, SOL_IPV6, IPV6_RECVERR, [1], 4) = 0
connect(3, {sa_family=AF_INET6, sin6_port=htons(53), sin6_flowinfo=htonl(0),
inet_pton(AF_INET6, "fd03::a", &sin6_addr), sin6_scope_id=0}, 28) = 0
poll([{fd=3, events=POLLOUT}], 1, 0) = 1 ([{fd=3, revents=POLLOUT}])
sendto(3, "R$\1\0\0\1\0\0\0\0\0\0'odinfn5gceir201-eir"..., 57, MSG_NOSIGNAL,
NULL, 0) = 57
poll([{fd=3, events=POLLIN}], 1, 5000) = 1 ([{fd=3, revents=POLLIN}])
ioctl(3, FIONREAD, [57]) = 0
recvfrom(3, "R$\201\202\0\1\0\0\0\0\0\0'odinfn5gceir201-eir"..., 1024, 0,
{sa_family=AF_INET6, sin6_port=htons(53), sin6_flowinfo=htonl(0),
inet_pton(AF_INET6, "fd03::a", &sin6_addr), sin6_scope_id=0}, [28]) = 57
close(3)
Whenever ldapsearch is executed localhost it it initiating a dnslookup also.
It is happening in some platform only
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