[sudo-users] sudo very slow

[Justin Alcorn]

I'm using Debian Etch, and confirmed that my sudo package is up to date (
1.6.8p12-4)

I have multiple Debian machines, and sudo runs fine on all except this one.
It happens to be my DNS, DHCP and samba server.

sudo takes a long time.  strace sudo su -  shows me delays in what looks
like trying to send a log entry.

stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
socket(PF_FILE, SOCK_DGRAM, 0)          = 4
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
connect(4, {sa_family=AF_FILE, path="/dev/log"}, 16) = 0
send(4, "<85>Jul 15 14:41:22 sudo:     ro"..., 90, MSG_NOSIGNAL
---pause----
...
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
getpid()                                = 3648
socket(PF_FILE, SOCK_DGRAM, 0)          = 3
fcntl64(3, F_SETFD, FD_CLOEXEC)         = 0
connect(3, {sa_family=AF_FILE, path="/dev/log"}, 16) = 0
send(3, "<86>Jul 15 14:41:48 su[3648]: Su"..., 60, MSG_NOSIGNAL
---pause---
...
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
send(3, "<86>Jul 15 14:42:18 su[3648]: + "..., 47, MSG_NOSIGNAL
---pause---
...
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
send(3, "<38>Jul 15 14:42:43 su[3648]: (p"..., 80, MSG_NOSIGNAL
--pause--
...


As you can see, it took more than a minute.   Sometimes it is much longer.

Exiting from the sudo shell also is delayed, as is logging on via SSH.

I've looked around thinking it's a reverse DNS, but I can do a reverse
lookup and get a PTR record.

Ideas?


-- 
--
Justin B. Alcorn