Eaton:/home/eaton # systemctl stop nscd Eaton:/home/eaton # systemctl restart NetworkManager Eaton:/home/eaton # strace ping baidu.com execve("/bin/ping", ["ping", "baidu.com"], 0x7ffe2e7f13d8 /* 96 vars */) = 0 brk(NULL) = 0x564cdd133000 arch_prctl(0x3001 /* ARCH_??? */, 0x7ffed76de5a0) = -1 EINVAL (无效的参数) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffbcf0e2000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (没有那个文件或目录) openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=125411, ...}) = 0 mmap(NULL, 125411, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7ffbcf0c3000 close(3) = 0 openat(AT_FDCWD, "/lib64/libcap.so.2", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@x\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=47256, ...}) = 0 mmap(NULL, 45128, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffbcf0b7000 mmap(0x7ffbcf0ba000, 20480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7ffbcf0ba000 mmap(0x7ffbcf0bf000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7ffbcf0bf000 mmap(0x7ffbcf0c1000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7ffbcf0c1000 close(3) = 0 openat(AT_FDCWD, "/lib64/libidn2.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=133160, ...}) = 0 mmap(NULL, 135184, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffbcf095000 mmap(0x7ffbcf097000, 16384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7ffbcf097000 mmap(0x7ffbcf09b000, 106496, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7ffbcf09b000 mmap(0x7ffbcf0b5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1f000) = 0x7ffbcf0b5000 close(3) = 0 openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\276\203\2\0\0\0\0\0"..., 832) = 832 pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784 fstat(3, {st_mode=S_IFREG|0755, st_size=2368112, ...}) = 0 pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784 mmap(NULL, 2098288, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffbcee00000 mmap(0x7ffbcee26000, 1490944, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x26000) = 0x7ffbcee26000 mmap(0x7ffbcef92000, 348160, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x192000) = 0x7ffbcef92000 mmap(0x7ffbcefe7000, 49152, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e6000) = 0x7ffbcefe7000 mmap(0x7ffbceff3000, 54384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffbceff3000 close(3) = 0 openat(AT_FDCWD, "/lib64/libunistring.so.5", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1767568, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffbcf093000 mmap(NULL, 1767656, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffbcec50000 mmap(0x7ffbcec63000, 225280, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13000) = 0x7ffbcec63000 mmap(0x7ffbcec9a000, 1445888, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4a000) = 0x7ffbcec9a000 mmap(0x7ffbcedfb000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ab000) = 0x7ffbcedfb000 close(3) = 0 mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffbcf090000 arch_prctl(ARCH_SET_FS, 0x7ffbcf090740) = 0 set_tid_address(0x7ffbcf090a10) = 28213 set_robust_list(0x7ffbcf090a20, 24) = 0 rseq(0x7ffbcf091060, 0x20, 0, 0x53053053) = 0 mprotect(0x7ffbcefe7000, 16384, PROT_READ) = 0 mprotect(0x7ffbcedfb000, 16384, PROT_READ) = 0 mprotect(0x7ffbcf0b5000, 4096, PROT_READ) = 0 mprotect(0x7ffbcf0c1000, 4096, PROT_READ) = 0 mprotect(0x564cdbca7000, 4096, PROT_READ) = 0 mprotect(0x7ffbcf116000, 8192, PROT_READ) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 munmap(0x7ffbcf0c3000, 125411) = 0 prctl(PR_CAPBSET_READ, CAP_MAC_OVERRIDE) = 1 prctl(PR_CAPBSET_READ, 0x30 /* CAP_??? */) = -1 EINVAL (无效的参数) prctl(PR_CAPBSET_READ, CAP_CHECKPOINT_RESTORE) = 1 prctl(PR_CAPBSET_READ, 0x2c /* CAP_??? */) = -1 EINVAL (无效的参数) prctl(PR_CAPBSET_READ, 0x2a /* CAP_??? */) = -1 EINVAL (无效的参数) prctl(PR_CAPBSET_READ, 0x29 /* CAP_??? */) = -1 EINVAL (无效的参数) getrandom("\x80\x86\xab\xfd\x77\x58\xe5\x35", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x564cdd133000 brk(0x564cdd154000) = 0x564cdd154000 capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, NULL) = 0 capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=1<